US20100047357A1 - Compositions for topical application comprising a peroxide and retinoid - Google Patents

Compositions for topical application comprising a peroxide and retinoid Download PDF

Info

Publication number
US20100047357A1
US20100047357A1 US12/525,329 US52532908A US2010047357A1 US 20100047357 A1 US20100047357 A1 US 20100047357A1 US 52532908 A US52532908 A US 52532908A US 2010047357 A1 US2010047357 A1 US 2010047357A1
Authority
US
United States
Prior art keywords
composition
metal oxide
particulate matter
coated
active ingredient
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US12/525,329
Other languages
English (en)
Inventor
Ofer Toledano
Hanan Sertchook
Natalia Loboda
Haim Bar-Simantov
Leora Shapiro
Raed Abu-Reziq
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sol Gel Technologies Ltd
Original Assignee
Sol Gel Technologies Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sol Gel Technologies Ltd filed Critical Sol Gel Technologies Ltd
Priority to US12/525,329 priority Critical patent/US20100047357A1/en
Assigned to SOL-GEL TECHNOLOGIES LTD. reassignment SOL-GEL TECHNOLOGIES LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ABU-REZIQ, RAED, SHAPIRO, LEORA, BAR-SIMANTOV, HAIM, LOBODA, NATALIA, SERTCHOOK, HANAN, TOLEDANO, OFER
Publication of US20100047357A1 publication Critical patent/US20100047357A1/en
Assigned to SOL-GEL TECHNOLOGIES LTD. reassignment SOL-GEL TECHNOLOGIES LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ABU-REZIQ, RAED, SHAPIRO, LEORA, BAR-SIMANTOV, HAIM, LOBODA, NATALIA, SERTCHOOK, HANAN, TOLEDANO, OFER
Abandoned legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/14Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • A61K9/16Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0012Galenical forms characterised by the site of application
    • A61K9/0014Skin, i.e. galenical aspects of topical compositions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/185Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
    • A61K31/19Carboxylic acids, e.g. valproic acid
    • A61K31/20Carboxylic acids, e.g. valproic acid having a carboxyl group bound to a chain of seven or more carbon atoms, e.g. stearic, palmitic, arachidic acids
    • A61K31/203Retinoic acids ; Salts thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/327Peroxy compounds, e.g. hydroperoxides, peroxides, peroxyacids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00Medicinal preparations containing organic active ingredients
    • A61K31/33Heterocyclic compounds
    • A61K31/395Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/44Non condensed pyridines; Hydrogenated derivatives thereof
    • A61K31/4427Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems
    • A61K31/4436Non condensed pyridines; Hydrogenated derivatives thereof containing further heterocyclic ring systems containing a heterocyclic ring having sulfur as a ring hetero atom
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/34Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/20Pills, tablets, discs, rods
    • A61K9/28Dragees; Coated pills or tablets, e.g. with film or compression coating
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00Drugs for dermatological disorders
    • A61P17/06Antipsoriatics
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00Drugs for dermatological disorders
    • A61P17/10Anti-acne agents
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61PSPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P17/00Drugs for dermatological disorders
    • A61P17/16Emollients or protectives, e.g. against radiation

Definitions

  • Sol-Gel process has been used to encapsulate various active ingredients, thus isolating the active ingredient from the environments.
  • FIG. 1 depicts the irritation test results performed according to Example 6.
  • the mean size of a side may be in the range 0.3 to 80 microns, preferably 0.3 to 40 microns, more preferably 0.8 to 40, even more preferably 4 to 15 microns.
  • the microparticles (coated particulate matter) have a diameter (d90) of 0.5 to 100 ⁇ m or preferably the diameter of the microparticles is in the range of 1 to 50 ⁇ m and most preferably in the range of 5 to 30 ⁇ m. It is appreciated that the microparticles of the present invention are composed of distinct regions of the metal oxide layer in the core material (i.e. the water insoluble particulate matter).
  • microparticles are preferably characterized in that the core material is substantially free of the metal oxide and further in that the metal oxide layer is substantially free of said core material, e.g. either as particle dispersion (in the nano-metric range of below 0.1 ⁇ m) of the particulate matter or as molecular dispersion of said particulate matter.
  • said coated form of the active ingredient is second microparticles comprising a solid particulate matter of the active ingredient coated by a metal oxide layer.
  • said peroxide is in the form of first microparticles comprising solid particulate matter of peroxide coated by a metal oxide layer and said retinoid is in the form of second microparticles comprising a solid particulate matter of the retinoid coated by a metal oxide layer.
  • the final form of the composition may be any of the above forms, mentioned with respect to the carrier, where the microparticles are dispersed in the carrier.
  • the final form of the composition may also be in the form of a wash or cleanser.
  • said first microparticles are prepared by deposition of metal oxide on the surface of the solid particulate matter.
  • the deposition of metal oxide on the surface of the particulate matter may be performed by precipitation of a metal oxide salt onto the surface of the particulate matter, forming a metal oxide layer thereon as will be described below or by a spray drying method.
  • the first microparticles are prepared by a process comprising:
  • the solid, water-insoluble particulate matter refers to the peroxide or retinoid.
  • the process described may also be used to coat additional active ingredients (e.g. antibiotics) which may be incorporated into the composition described in the present invention.
  • step (b2) subjecting the particulate matter obtained in step (b1) to a coating procedure as in step (b);
  • step (c) is repeated 3 to about 1000 times.
  • step (c) is repeated 3 to about 300 times, and more preferably 3 to about 100 times. This means that preferably steps (b1) and (b2) are repeated as indicted above with respect to step (c).
  • the cationic surfactant selected from monoalkylquaternary ammonium salts, dialkyl quaternary ammonium salts, and mixtures thereof.
  • the ionic additive may be an anionic surfactant.
  • the weight ratio of the further processed coated particulate matter (e.g. in the repeated steps described in step (c)) to the second cationic additive is in the range of about 25,000/1 to about 50/1, more preferably about 5,000/1 to about 100/1, most preferably about 2000/1 to about 200/1.
  • the surface chemical modification preferably comprises modifying the metal oxide surface with organic groups, preferably hydrophobic groups.
  • the halo group may be for example chloro, bromo, iodo, fluoro. Most preferably the halo groups are chloro and bromo.
  • the positive zeta potential in step (a) is less than +150 mV, more preferably zeta potential in the range +60 mV to +130 mV.
  • the preferred zeta potential in step (d) is less than +150 mV, more preferably in the range +5 mV to +130 mV, and most preferably +10 mV to +100 mV. This is the preferred zeta potential also in the further, optional, processing steps.
  • the monoalkylquaternary ammonium salt is cetyltrimethylammonium chloride.
  • the weight ratio of the second cationic additive to the further processed coated particulate matter is in the range 1:1000-1:10, more preferably 1:200-1:50, most preferably about 1:100.
  • the first microparticles may also prepared by spray drying as described for example in:
  • the side effects are selected from irritation, erythema, stringing, itching, scaling, dryness, and combinations thereof.
  • the aging step The coated BPO suspension at pH 6.5 was kept for aging at room temperature under gentle agitation for 24 hrs.
  • the aging step The coated ATRA suspension at pH 4.5 was kept for aging at room temperature under gentle agitation for 24 hrs.
  • ATRA All-trans-Retinoic acid

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Engineering & Computer Science (AREA)
  • Dermatology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Toxicology (AREA)
  • Medicinal Preparation (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Cosmetics (AREA)
US12/525,329 2007-02-01 2008-02-03 Compositions for topical application comprising a peroxide and retinoid Abandoned US20100047357A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US12/525,329 US20100047357A1 (en) 2007-02-01 2008-02-03 Compositions for topical application comprising a peroxide and retinoid

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US89870107P 2007-02-01 2007-02-01
US12/525,329 US20100047357A1 (en) 2007-02-01 2008-02-03 Compositions for topical application comprising a peroxide and retinoid
PCT/IL2008/000140 WO2008093346A2 (en) 2007-02-01 2008-02-03 Compositions for topical application comprising a peroxide and retinoid

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2008/000140 A-371-Of-International WO2008093346A2 (en) 2007-02-01 2008-02-03 Compositions for topical application comprising a peroxide and retinoid

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/495,701 Continuation US8617580B2 (en) 2007-02-01 2012-06-13 Compositions for topical application comprising a peroxide and retinoid

Publications (1)

Publication Number Publication Date
US20100047357A1 true US20100047357A1 (en) 2010-02-25

Family

ID=39273433

Family Applications (2)

Application Number Title Priority Date Filing Date
US12/525,329 Abandoned US20100047357A1 (en) 2007-02-01 2008-02-03 Compositions for topical application comprising a peroxide and retinoid
US13/495,701 Active US8617580B2 (en) 2007-02-01 2012-06-13 Compositions for topical application comprising a peroxide and retinoid

Family Applications After (1)

Application Number Title Priority Date Filing Date
US13/495,701 Active US8617580B2 (en) 2007-02-01 2012-06-13 Compositions for topical application comprising a peroxide and retinoid

Country Status (11)

Country Link
US (2) US20100047357A1 (es)
EP (1) EP2109445B1 (es)
JP (2) JP2010517996A (es)
KR (1) KR20090125243A (es)
AU (1) AU2008211553B2 (es)
BR (1) BRPI0808163A2 (es)
CA (1) CA2677184C (es)
EA (1) EA200970724A1 (es)
ES (1) ES2912051T3 (es)
MX (1) MX2009008250A (es)
WO (1) WO2008093346A2 (es)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100016443A1 (en) * 2007-02-01 2010-01-21 Sol-Gel Technologies Ltd. Method for preparing particles comprising metal oxide coating and particles with metal oxide coating
US20130095185A1 (en) * 2011-06-29 2013-04-18 Medicis Pharamaceutical Corporation Stabilized topical formulations containing core-shell microcapsules
US9687465B2 (en) 2012-11-27 2017-06-27 Sol-Gel Technologies Ltd. Compositions for the treatment of rosacea
US9868103B2 (en) 2005-08-02 2018-01-16 Sol-Gel Technologies Ltd. Metal oxide coating of water insoluble ingredients
US10512796B2 (en) 2009-12-31 2019-12-24 Sol-Gel Technologies Ltd. Core stabilized microcapsules, method of their preparation and uses thereof
US10653899B2 (en) 2009-12-31 2020-05-19 Sol-Gel Technologies Ltd. Core stabilized microcapsules, method of their preparation and uses thereof
US11071878B2 (en) 2009-12-31 2021-07-27 Sol-Gel Technologies Ltd. Core stabilized microcapsules, method of their preparation and uses thereof

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2263788B1 (en) 2003-07-31 2018-07-25 Sol-Gel Technologies Ltd. A process for the preparation of microcapsules filled with active ingredients
MX2011000682A (es) 2008-07-31 2011-03-25 Sol Gel Technologies Ltd Microcapsulas que comprenden ingredientes activos y una cubierta de oxido de metal, un metodo para su preparacion y usos de las mismas.
BRPI1006011A2 (pt) * 2009-01-05 2016-04-05 Sol Gel Technologies Ltd sistema tópico de múltiplos componentes, métodos para tratar, melhorar a aparência de ou evitar uma doença ou condição da pele ou de uma membrana de mucosa, para tratar lesões da pela, para tratar comedões de pele, e para tratar acne, uso de um sistema, e, kit.
AU2010273261B2 (en) * 2009-07-16 2013-07-25 Stiefel Laboratories, Inc. Tazarotene derivatives
WO2011154421A1 (de) * 2010-06-09 2011-12-15 Basf Se Wirkstoff enthaltende mikrokapseln mit einer metalloxid-haltigen schale
US9572880B2 (en) 2010-08-27 2017-02-21 Sienna Biopharmaceuticals, Inc. Ultrasound delivery of nanoparticles
EP3210591B1 (en) 2010-08-27 2019-01-02 Sienna Biopharmaceuticals, Inc. Compositions and methods for targeted thermomodulation
MX2015004524A (es) 2012-10-11 2015-09-25 Nanocomposix Inc Metodos y composiciones de nanoplacas de plata.
JP6423355B2 (ja) * 2012-11-27 2018-11-14 ソル − ゲル テクノロジーズ リミテッド 酒さの治療のための組成物
WO2015092602A1 (en) * 2013-12-17 2015-06-25 Ranbaxy Laboratories Limited Topical pharmaceutical composition of a retinoid
WO2015161179A1 (en) 2014-04-18 2015-10-22 Pilant Gregory P Methods and compositions for topical delivery for skin care
WO2017029665A1 (en) 2015-08-20 2017-02-23 Sol-Gel Technologies Ltd. Compositions for topical application comprising benzoyl peroxide and adapalene
CA3016436A1 (en) * 2016-03-04 2017-09-08 Arkema Inc. Encapsulation of peroxides for skin applications
CA3069359C (en) 2017-07-12 2023-01-10 Sol-Gel Technologies Ltd. Compositions comprising encapsulated tretinoin
JP2020527143A (ja) 2017-07-12 2020-09-03 ソル − ゲル テクノロジーズ リミテッド ざ瘡の治療のための方法および組成物
US20190015368A1 (en) * 2017-07-12 2019-01-17 Sol-Gel Technologies Ltd. Method of acne treatment by concomitant topical administration of benzoyl peroxide and tretinoin
JP6811213B2 (ja) * 2018-07-03 2021-01-13 ソル − ゲル テクノロジーズ リミテッド 酒さの治療のための組成物
WO2020044344A1 (en) * 2018-08-29 2020-03-05 Sol-Gel Technologies Ltd Compositions comprising ozenoxacin
US10933046B2 (en) * 2019-02-19 2021-03-02 Sol-Gel Technologies, Ltd. Method for treatment of rosacea in patients aged 65 years and older
JP7241967B2 (ja) 2020-03-27 2023-03-17 三菱電機株式会社 空気調和機
KR20230027073A (ko) * 2020-05-22 2023-02-27 솔-겔 테크놀로지스 리미티드 안정화된 마이크로캡슐, 그의 제조 방법 및 그의 용도
WO2023105227A1 (en) * 2021-12-08 2023-06-15 Nanexa Ab New injectable combination formulation

Citations (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350681A (en) * 1977-10-07 1982-09-21 A.H.C. Pharmacal, Inc. Stabilized benzoyl peroxide compositions
US4361584A (en) * 1977-10-07 1982-11-30 A.H.C. Pharmacal, Inc. Composition and method for the treatment of acne
US4387107A (en) * 1979-07-25 1983-06-07 Dermik Laboratories, Inc. Stable benzoyl peroxide composition
US4497794A (en) * 1980-12-08 1985-02-05 Dermik Laboratories, Inc. Erythromycin/benzoyl peroxide composition for the treatment of acne
US4671956A (en) * 1983-12-01 1987-06-09 L'oreal Antiacne composition containing benzoic peroxide in association with at least one sun filter
US4690825A (en) * 1985-10-04 1987-09-01 Advanced Polymer Systems, Inc. Method for delivering an active ingredient by controlled time release utilizing a novel delivery vehicle which can be prepared by a process utilizing the active ingredient as a porogen
US4931362A (en) * 1987-08-18 1990-06-05 F.Joh.Kwizda Gesellschaft M.B.H. Microcapsule and micromatrix bodies and method for their formation
US4960772A (en) * 1988-03-09 1990-10-02 L'oreal Benzoyl peroxide and quaternary ammonium based pharmaceutical and cosmetic compositions
US5086075A (en) * 1985-01-24 1992-02-04 Board Of Regents, The University Of Texas System Therapeutic compositions containing benzoyl peroxide
US5145675A (en) * 1986-03-31 1992-09-08 Advanced Polymer Systems, Inc. Two step method for preparation of controlled release formulations
US5466446A (en) * 1994-02-16 1995-11-14 Stiefel Laboratories, Inc. Topical compositions containing bensoyl peroxide and clindamycin and method of use thereof
US5632996A (en) * 1995-04-14 1997-05-27 Imaginative Research Associates, Inc. Benzoyl peroxide and benzoate ester containing compositions suitable for contact with skin
US5767098A (en) * 1985-12-12 1998-06-16 Dermik Laboratories, Inc. Anti-acne method and composition
US5851538A (en) * 1995-12-29 1998-12-22 Advanced Polymer Systems, Inc. Retinoid formulations in porous microspheres for reduced irritation and enhanced stability
US5879716A (en) * 1985-12-18 1999-03-09 Advanced Polymer Systems, Inc. Methods and compositions for topical delivery of benzoyl peroxide
US5955109A (en) * 1985-12-18 1999-09-21 Advanced Polymer Systems, Inc. Methods and compositions for topical delivery of retinoic acid
US5998392A (en) * 1996-04-10 1999-12-07 Gattefosse S.A. Benzoyl peroxide flocculent materials and methods of their preparation
US6013637A (en) * 1998-06-12 2000-01-11 Dermik Laboratories Inc. Anti-acne method and composition
US6096765A (en) * 1998-07-28 2000-08-01 Bershad; Susan Short contact treatment of acne with topical retinoids
US6117843A (en) * 1992-02-18 2000-09-12 Lloyd J. Baroody Compositions for the treatment of acne containing clindamycin and benzoyl peroxide
US6238650B1 (en) * 1999-05-26 2001-05-29 Sol-Gel Technologies Ltd. Sunscreen composition containing sol-gel microcapsules
US6251313B1 (en) * 1998-03-12 2001-06-26 Wacker-Chemie Gmbh Process for the preparation of microencapsulated products having organopolysiloxane walls
US6303149B1 (en) * 1998-08-13 2001-10-16 Sol-Gel Technologies, Ltd. Method for the preparation of oxide microcapsules loaded with functional molecules and the products obtained thereof
US6337089B1 (en) * 1998-02-06 2002-01-08 Seiwa Kasei Company, Limited Microcapsule containing core material and method for producing the same
US20020064541A1 (en) * 2000-04-21 2002-05-30 Noa Lapidot Composition exhibiting enhanced formulation stability and delivery of topical active ingredients
US6436375B1 (en) * 1999-05-25 2002-08-20 Sol-Gel Technologies Ltd. Method for obtaining photostable sunscreen compositions
US6468509B2 (en) * 1998-12-18 2002-10-22 Sol-Gel Technologies Ltd. Sunscreen composition containing sol-gel microcapsules
US20030170196A1 (en) * 2001-12-21 2003-09-11 Sandrine Orsoni Dermatological/cosmetic gels comprising at least one retinoid and benzoyl peroxide
US6855335B2 (en) * 2003-06-17 2005-02-15 Unitech Co., Ltd. Process for preparing silica microcapsules
US20050037087A1 (en) * 2001-11-08 2005-02-17 Noa Lapidot Compositions containing oils having a specific gravity higher than the specific gravity of water
US20050276807A1 (en) * 2004-06-15 2005-12-15 Advanced Biotherapy, Inc. Treatment of acne

Family Cites Families (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885366A (en) 1956-06-28 1959-05-05 Du Pont Product comprising a skin of dense, hydrated amorphous silica bound upon a core of another solid material and process of making same
US3785798A (en) 1967-04-26 1974-01-15 Gaf Corp Biologically active particulate material and the process for manufacturing same
GB1399344A (en) 1971-06-03 1975-07-02 Ici Ltd Method of producing vesiculated particles of inorganic materials
US3826670A (en) 1972-11-07 1974-07-30 Sherwin Williams Co Encapsulation of organic pigments
US3957971A (en) 1974-07-29 1976-05-18 Lever Brothers Company Moisturizing units and moisturizing compositions containing the same
US4087555A (en) 1975-09-08 1978-05-02 Helena Rubinstein, Inc. Skin cream containing milk protein
US4349456A (en) 1976-04-22 1982-09-14 Minnesota Mining And Manufacturing Company Non-vitreous ceramic metal oxide microcapsules and process for making same
DE2642032A1 (de) 1976-09-18 1978-03-30 Merck Patent Gmbh Siliciumdioxidhaltige zubereitungen und verfahren zu ihrer herstellung
US4606913A (en) 1978-09-25 1986-08-19 Lever Brothers Company High internal phase emulsions
US4464317A (en) 1980-01-28 1984-08-07 The Washington University Method of encapsulating active agents with inorganic coatings
US4692329A (en) 1980-12-08 1987-09-08 William H. Rorer, Inc. Erythromycin/benzoyl peroxide antiacne compositions
GB2110083B (en) 1981-11-24 1985-05-30 Colgate Palmolive Co Visually clear coloured dentifrice
JPS6191137A (ja) 1984-10-11 1986-05-09 Kao Corp 外用薬剤組成物
US4769080A (en) 1985-06-24 1988-09-06 The Dow Chemical Company Insoluble pigments and preparation thereof
EP0281034A3 (en) 1987-02-26 1990-09-19 Tohru Yamamoto An aromatic composition and a method for the production of the same
US4891211A (en) 1988-06-29 1990-01-02 Church & Dwight Co., Inc. Stable hydrogen peroxide-releasing dentifice
US5126915A (en) 1989-07-28 1992-06-30 E. I. Du Pont De Nemours And Company Metal oxide-coated electrically conductive powders and compositions thereof
IL93134A (en) 1990-01-23 1997-11-20 Yissum Res Dev Co Doped sol-gel glasses for obtaining chemical interactions
US5318797A (en) 1990-06-20 1994-06-07 Clarkson University Coated particles, hollow particles, and process for manufacturing the same
GB9021061D0 (en) 1990-09-27 1990-11-07 Unilever Plc Encapsulating method and products containing encapsulated material
US5733531A (en) 1991-02-05 1998-03-31 Sunsmart, Inc. Composite UV sunblock compositions
US5223250A (en) 1991-02-05 1993-06-29 Sun Smart, Inc. Visibly transparent UV sunblock cosmetic compositions
US5165914A (en) 1991-03-04 1992-11-24 David G. Vlock Oral compositions containing zinc lactate complexes
FR2675398B1 (fr) 1991-04-19 1994-04-01 Roussel Uclaf Micro-capsules de filtres solaires, leur procede de preparation, les compositions cosmetiques et pharmaceutiques les comprenant et leurs applications.
US5200334A (en) 1991-08-13 1993-04-06 The Regents Of The University Of California Sol-gel encapsulated enzyme
FR2681248B1 (fr) 1991-09-13 1995-04-28 Oreal Composition pour un traitement cosmetique et/ou pharmaceutique de longue duree des couches superieures de l'epiderme par une application topique sur la peau.
US5269840A (en) 1992-02-04 1993-12-14 Minnesota Mining And Manufacturing Company Sol bonded colorant clusters and process for making
US5520917A (en) 1992-07-27 1996-05-28 Suzuki Yushi Industries Co., Ltd. Materials in the form of colored spherical fine particles
FR2694895B1 (fr) 1992-08-20 1994-11-10 Coletica Procédé de fabrication de microparticules en émulsion par modification de la composition chimique de la phase dispersée après émulsification.
FR2694894B1 (fr) 1992-08-20 1994-11-10 Coletica Utilisation d'une réaction de transacylation entre un polysaccharide estérifié et une substance polyaminée ou polyhydroxylée pour la fabrication de microparticules, procédé et composition.
FR2703927B1 (fr) 1993-04-13 1995-07-13 Coletica Utilisation d'une réaction de transacylation entre un polysaccharide estérifié et une polyamine pour former en milieu aqueux une membrane au moins en surface de particules gélifiées.
DE4321005A1 (de) 1993-06-24 1995-01-05 Merck Patent Gmbh Perlglanzpigment für Wasserlacksysteme
US5895757A (en) 1993-06-30 1999-04-20 Pope; Edward J. A. Encapsulation of living tissue cells in inorganic microspheres prepared from an organosilicon
US5739020A (en) 1995-01-10 1998-04-14 Pope; Edward J. A. Encapsulation of animal and microbial cells in an inorganic gel prepared from an organosilicon
US5846554A (en) 1993-11-15 1998-12-08 Zeneca Limited Microcapsules containing suspensions of biologically active compounds and ultraviolet protectant
DE4341113B4 (de) 1993-12-02 2006-04-13 IFAC Institut für angewandte Colloidtechnologie GmbH & Co. KG Stabile multiple X/O/Y-Emulsion
FR2719218B1 (fr) 1994-04-28 1996-07-05 Oreal Utilisation d'une suspension colloïdale à base de charges minérales comme composition cosmétique permettant de former un film sur les cheveux, la peau et/ou les ongles.
DE4416003C2 (de) 1994-05-06 1999-02-11 Feinchemie Gmbh Sebnitz Metalloxidpulver und -filme mit inkorporierten organischen Flüssigkeiten und Ölen, ihre Herstellung und Verwendung
EP0680753A3 (de) 1994-05-06 1996-08-28 Feinchemie Gmbh Sebnitz Metalloxidkomposit mit steuerbarer Wirkstoffabgabe.
FR2720632B1 (fr) 1994-06-03 1996-07-05 Oreal Compositions cosmétiques photoprotectrices contenant un système filtrant les rayons UV et des polymères particuliers et utilisations.
US5591453A (en) 1994-07-27 1997-01-07 The Trustees Of The University Of Pennsylvania Incorporation of biologically active molecules into bioactive glasses
US5445823A (en) 1994-10-20 1995-08-29 The Procter & Gamble Company Dermatological compositions and method of treatment of skin lesions therewith
US5576097A (en) 1995-04-24 1996-11-19 Brite-Line Industries, Inc. High brightness durable retro-reflecting microspheres and method of making the same
US5700451A (en) 1995-05-24 1997-12-23 The Procter & Gamble Company Sunscreen composition
US5874105A (en) 1996-01-31 1999-02-23 Collaborative Laboratories, Inc. Lipid vesicles formed with alkylammonium fatty acid salts
US5785977A (en) 1996-02-07 1998-07-28 Breithbarth; Richard Non-metallic microparticle carrier materials
FR2747668B1 (fr) 1996-04-22 1998-05-22 Rhone Poulenc Chimie Procede de preparation de silice comprenant une ecorce de silice et un coeur en un materiau autre
US5876699A (en) 1996-05-14 1999-03-02 Disomma; Joseph Sunblock composition suitable for sensitive skin areas
DE19625267A1 (de) 1996-06-25 1998-01-08 Bayer Ag Verfahren zur Herstellung anorganisch beschichteter Pigmente und Füllstoffe
GB9616978D0 (en) 1996-08-13 1996-09-25 Tioxide Specialties Ltd Zinc oxide dispersions
FR2755856B1 (fr) 1996-11-21 1999-01-29 Merck Clevenot Laboratoires Microcapsules de chitine ou de derives de chitine contenant une substance hydrophobe, notamment un filtre solaire et procede de preparation de telles microcapsules
IL120022A (en) 1997-01-16 2003-02-12 Yissum Res Dev Co Sunscreens for protection from sun radiation
FR2758826B1 (fr) 1997-01-27 1999-04-16 Rhodia Chimie Sa Nouveau pigment de dioxide de titane, son procede de preparation et son utilisation dans les compositions de peinture
US5962517A (en) 1997-01-31 1999-10-05 Murad; Howard Pharmaceutical compositions and methods for treating acne
US5906811A (en) 1997-06-27 1999-05-25 Thione International, Inc. Intra-oral antioxidant preparations
FR2766090B1 (fr) 1997-07-15 1999-10-08 Coletica Particules, en particulier micro- ou nanoparticules de proteines vegetales reticulees, leur procede de preparation et compositions cosmetiques, pharmaceutiques ou alimentaires en contenant
US6280746B1 (en) 1997-10-17 2001-08-28 International Flora Technologies Ltd. Dry emollient compositions
US6090399A (en) 1997-12-11 2000-07-18 Rohm And Haas Company Controlled release composition incorporating metal oxide glass comprising biologically active compound
US6015548A (en) 1998-07-10 2000-01-18 Shaklee Corporation High efficiency skin protection formulation with sunscreen agents and antioxidants
FR2774906B1 (fr) 1998-02-13 2000-05-12 Rhodia Chimie Sa Systeme d'encapsulation a coeur organique et a ecorce minerale a base d'hydroxycarbonate d'aluminium et son procede de preparation
DE19811900C2 (de) 1998-03-18 2003-12-11 Kallies Feinchemie Ag Biokompatibles Kompositmaterial, Verfahren zu seiner Herstellung und seine Verwendung
EP0972563A1 (en) 1998-07-15 2000-01-19 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Fabrication of multilayer-coated particles and hollow shells via electrostatic self-assembly of nanocomposite multilayers on decomposable colloidal templates
EP1064088B1 (en) 1998-03-19 2002-12-04 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. Fabrication of multilayer-coated particles and hollow shells via electrostatic self-assembly of nanocomposite multilayers on decomposable colloidal templates
FR2780901B1 (fr) 1998-07-09 2000-09-29 Coletica Particules, en particulier micro- ou nanoparticules de monosaccharides et oligosaccharides reticules, leurs procedes de preparation et compositions cosmetiques, pharmaceutiques ou alimentaires en contenant
US6146664A (en) 1998-07-10 2000-11-14 Shaklee Corporation Stable topical ascorbic acid compositions
US6103267A (en) 1998-07-27 2000-08-15 Sunsmart, Inc. Stabilized ascorbic acid, composition, and method of use
US6074629A (en) 1998-07-27 2000-06-13 J. M. Huber Corporation Dentifrice with a dye absorbing silica for imparting a speckled appearance thereto
US6217852B1 (en) 1998-08-15 2001-04-17 Skinnovative Dermatologic Concepts, L.L.C. Personal cleansing compositions having photoprotective agents
DE19842766A1 (de) 1998-09-18 2000-03-23 Beiersdorf Ag Emulgatorfreie feindisperse Systeme vom Typ Öl-in-Wasser und Wasser-in-Öl
FR2785199B1 (fr) 1998-10-30 2001-01-05 Rhodia Chimie Sa Procede de preparation de capsules constituees d'un noyau de matiere active liquide entoure d'une ecorce minerale
FR2785292B1 (fr) 1998-10-30 2002-06-28 Rhodia Chimie Sa Capsules a ecorce minerale poreuse dans lesquelles sont immobilisees dans un milieu biologique liquide, une ou plusieurs matieres biologiques, leurs procede de preparation et utilisations
CN1312233C (zh) 1999-01-11 2007-04-25 昭和电工株式会社 化妆料、表面疏水化二氧化硅被覆金属氧化物粒子、二氧化硅被覆金属氧化物溶胶、以及它们的制法
US6395299B1 (en) 1999-02-12 2002-05-28 Biostream, Inc. Matrices for drug delivery and methods for making and using the same
US6495352B1 (en) 1999-04-15 2002-12-17 Sandia Corporation Sol-gel method for encapsulating molecules
US6143280A (en) 1999-05-18 2000-11-07 J. M. Huber Corporation Color containing silica resistant to dye migration and method of making the same
FR2799119B1 (fr) 1999-10-01 2001-11-30 Oreal Procede pour ameliorer la stabilite vis-a-vis du rayonnement uv de filtres solaires photosensibles
DE10001172A1 (de) 2000-01-13 2001-07-26 Max Planck Gesellschaft Templatieren von Feststoffpartikeln mit Polymermultischichten
RS50407B (sr) 2000-02-08 2009-12-31 Euro-Celtique S.A., Oralne formulacije opijatnog agonista otporne na mehaničke,termičke i/ili hemijske promene fizičkih osobina doznog oblika
ES2366886T1 (es) * 2000-04-21 2011-10-26 Sol-Gel Technologies Ltd. Composición que presenta estabilidad de formulación potenciada y administración de ingredientes activos tópicos potenciado.
US6303290B1 (en) 2000-09-13 2001-10-16 The Trustees Of The University Of Pennsylvania Encapsulation of biomaterials in porous glass-like matrices prepared via an aqueous colloidal sol-gel process
US7060732B2 (en) * 2000-12-12 2006-06-13 Imaginative Research Associates, Inc. Antibiotic/benzoyl peroxide dispenser
US20020193321A1 (en) 2000-12-12 2002-12-19 Mohan Vishnupad Dual dispenser for aesthitically acceptable delivery of anhydrous skin treatment compositions
US20020151527A1 (en) 2000-12-20 2002-10-17 Benjamin Wiegand Method for reducing acne or improving skin tone
GB2377078B (en) 2001-06-27 2003-06-04 Morgan Crucible Co Fuel cell or electrolyser construction
JP3900863B2 (ja) 2001-06-28 2007-04-04 シャープ株式会社 データ転送制御装置、半導体記憶装置および情報機器
US6913825B2 (en) 2001-09-20 2005-07-05 University Of Notre Dame Du Lac Process for making mesoporous silicate nanoparticle coatings and hollow mesoporous silica nano-shells
US7037513B1 (en) 2005-01-31 2006-05-02 Aquea Scientific Corporation Bodywash additives
FR2833841B1 (fr) * 2001-12-21 2005-07-22 Galderma Res & Dev Gel comprenant au moins un retinoide et du peroxyde de benzoyle
GB0202853D0 (en) 2002-02-07 2002-03-27 Dow Corning Encapsulation process and encapsulated compositions
US6875264B2 (en) 2003-01-17 2005-04-05 Engelhard Corporation Multi-layer effect pigment
WO2004064769A2 (en) * 2003-01-21 2004-08-05 Hector Herrera Methods for making and using topical delivery agents
GB0301577D0 (en) 2003-01-23 2003-02-26 Edko Pazarlama Tanitim Ltd Sti Topical pharmaceutical and/or cosmetic dispense systems
FR2850576B1 (fr) 2003-02-05 2007-03-23 Ethypharm Sa Composition comprenant un melange de principes actifs, et procede de preparation
WO2004081222A2 (en) 2003-03-14 2004-09-23 Sol-Gel Technologies Ltd. Agent-encapsulating micro- and nanoparticles, methods for preparation of same and products containing same
EP2263788B1 (en) 2003-07-31 2018-07-25 Sol-Gel Technologies Ltd. A process for the preparation of microcapsules filled with active ingredients
US20050208134A1 (en) 2004-02-25 2005-09-22 Shlomo Magdassi Biocompatible polymeric beads and use thereof
GB2416524A (en) 2004-07-24 2006-02-01 Dow Corning Microcapsules with siloxane walls formed in situ
US7001592B1 (en) 2005-01-31 2006-02-21 Aquea Scientific Corporation Sunscreen compositions and methods of use
AR054805A1 (es) 2005-06-29 2007-07-18 Stiefel Laboratories Composiciones topicas para el tratamiento de la piel
EP2431088A1 (en) 2005-08-02 2012-03-21 Sol-Gel Technologies Ltd. Metal oxide coating of water insoluble ingredients

Patent Citations (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4350681A (en) * 1977-10-07 1982-09-21 A.H.C. Pharmacal, Inc. Stabilized benzoyl peroxide compositions
US4361584A (en) * 1977-10-07 1982-11-30 A.H.C. Pharmacal, Inc. Composition and method for the treatment of acne
US4387107A (en) * 1979-07-25 1983-06-07 Dermik Laboratories, Inc. Stable benzoyl peroxide composition
US4497794A (en) * 1980-12-08 1985-02-05 Dermik Laboratories, Inc. Erythromycin/benzoyl peroxide composition for the treatment of acne
US4671956A (en) * 1983-12-01 1987-06-09 L'oreal Antiacne composition containing benzoic peroxide in association with at least one sun filter
US5086075A (en) * 1985-01-24 1992-02-04 Board Of Regents, The University Of Texas System Therapeutic compositions containing benzoyl peroxide
US4690825A (en) * 1985-10-04 1987-09-01 Advanced Polymer Systems, Inc. Method for delivering an active ingredient by controlled time release utilizing a novel delivery vehicle which can be prepared by a process utilizing the active ingredient as a porogen
US5767098A (en) * 1985-12-12 1998-06-16 Dermik Laboratories, Inc. Anti-acne method and composition
US5879716A (en) * 1985-12-18 1999-03-09 Advanced Polymer Systems, Inc. Methods and compositions for topical delivery of benzoyl peroxide
US5955109A (en) * 1985-12-18 1999-09-21 Advanced Polymer Systems, Inc. Methods and compositions for topical delivery of retinoic acid
US5145675A (en) * 1986-03-31 1992-09-08 Advanced Polymer Systems, Inc. Two step method for preparation of controlled release formulations
US4931362A (en) * 1987-08-18 1990-06-05 F.Joh.Kwizda Gesellschaft M.B.H. Microcapsule and micromatrix bodies and method for their formation
US4960772A (en) * 1988-03-09 1990-10-02 L'oreal Benzoyl peroxide and quaternary ammonium based pharmaceutical and cosmetic compositions
US6117843A (en) * 1992-02-18 2000-09-12 Lloyd J. Baroody Compositions for the treatment of acne containing clindamycin and benzoyl peroxide
US5466446A (en) * 1994-02-16 1995-11-14 Stiefel Laboratories, Inc. Topical compositions containing bensoyl peroxide and clindamycin and method of use thereof
US5632996A (en) * 1995-04-14 1997-05-27 Imaginative Research Associates, Inc. Benzoyl peroxide and benzoate ester containing compositions suitable for contact with skin
US5851538A (en) * 1995-12-29 1998-12-22 Advanced Polymer Systems, Inc. Retinoid formulations in porous microspheres for reduced irritation and enhanced stability
US5998392A (en) * 1996-04-10 1999-12-07 Gattefosse S.A. Benzoyl peroxide flocculent materials and methods of their preparation
US6337089B1 (en) * 1998-02-06 2002-01-08 Seiwa Kasei Company, Limited Microcapsule containing core material and method for producing the same
US6251313B1 (en) * 1998-03-12 2001-06-26 Wacker-Chemie Gmbh Process for the preparation of microencapsulated products having organopolysiloxane walls
US6013637A (en) * 1998-06-12 2000-01-11 Dermik Laboratories Inc. Anti-acne method and composition
US6096765A (en) * 1998-07-28 2000-08-01 Bershad; Susan Short contact treatment of acne with topical retinoids
US6303149B1 (en) * 1998-08-13 2001-10-16 Sol-Gel Technologies, Ltd. Method for the preparation of oxide microcapsules loaded with functional molecules and the products obtained thereof
US6468509B2 (en) * 1998-12-18 2002-10-22 Sol-Gel Technologies Ltd. Sunscreen composition containing sol-gel microcapsules
US6436375B1 (en) * 1999-05-25 2002-08-20 Sol-Gel Technologies Ltd. Method for obtaining photostable sunscreen compositions
US6238650B1 (en) * 1999-05-26 2001-05-29 Sol-Gel Technologies Ltd. Sunscreen composition containing sol-gel microcapsules
US20020064541A1 (en) * 2000-04-21 2002-05-30 Noa Lapidot Composition exhibiting enhanced formulation stability and delivery of topical active ingredients
US7758888B2 (en) * 2000-04-21 2010-07-20 Sol-Gel Technologies Ltd. Composition exhibiting enhanced formulation stability and delivery of topical active ingredients
US8039020B2 (en) * 2000-04-21 2011-10-18 Sol-Gel Technologies Ltd. Composition exhibiting enhanced formulation stability and delivery of topical active ingredients
US20050037087A1 (en) * 2001-11-08 2005-02-17 Noa Lapidot Compositions containing oils having a specific gravity higher than the specific gravity of water
US20030170196A1 (en) * 2001-12-21 2003-09-11 Sandrine Orsoni Dermatological/cosmetic gels comprising at least one retinoid and benzoyl peroxide
US6855335B2 (en) * 2003-06-17 2005-02-15 Unitech Co., Ltd. Process for preparing silica microcapsules
US20050276807A1 (en) * 2004-06-15 2005-12-15 Advanced Biotherapy, Inc. Treatment of acne

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9868103B2 (en) 2005-08-02 2018-01-16 Sol-Gel Technologies Ltd. Metal oxide coating of water insoluble ingredients
US20100016443A1 (en) * 2007-02-01 2010-01-21 Sol-Gel Technologies Ltd. Method for preparing particles comprising metal oxide coating and particles with metal oxide coating
US10512796B2 (en) 2009-12-31 2019-12-24 Sol-Gel Technologies Ltd. Core stabilized microcapsules, method of their preparation and uses thereof
US10653899B2 (en) 2009-12-31 2020-05-19 Sol-Gel Technologies Ltd. Core stabilized microcapsules, method of their preparation and uses thereof
US11071878B2 (en) 2009-12-31 2021-07-27 Sol-Gel Technologies Ltd. Core stabilized microcapsules, method of their preparation and uses thereof
US20130095185A1 (en) * 2011-06-29 2013-04-18 Medicis Pharamaceutical Corporation Stabilized topical formulations containing core-shell microcapsules
CN103732217A (zh) * 2011-06-29 2014-04-16 索尔-格尔科技有限公司 稳定化的包含核-壳微囊的局部制剂
CN107625743A (zh) * 2011-06-29 2018-01-26 索尔-格尔科技有限公司 稳定化的包含核‑壳微囊的局部制剂
EP2726067B1 (en) * 2011-06-29 2020-02-19 Sol-Gel Technologies Ltd. Stabilized topical formulations containing core-shell microcapsules
EP3698778A1 (en) * 2011-06-29 2020-08-26 Sol-Gel Technologies Ltd. Stabilized topical formulations containing core-shell microcapsules
US9687465B2 (en) 2012-11-27 2017-06-27 Sol-Gel Technologies Ltd. Compositions for the treatment of rosacea

Also Published As

Publication number Publication date
US8617580B2 (en) 2013-12-31
WO2008093346A2 (en) 2008-08-07
CA2677184A1 (en) 2008-08-07
CA2677184C (en) 2014-12-23
JP5923065B2 (ja) 2016-05-24
KR20090125243A (ko) 2009-12-04
MX2009008250A (es) 2009-08-27
EP2109445B1 (en) 2022-04-20
AU2008211553A1 (en) 2008-08-07
EP2109445A2 (en) 2009-10-21
BRPI0808163A2 (pt) 2014-11-04
JP2013213063A (ja) 2013-10-17
AU2008211553B2 (en) 2013-06-20
ES2912051T3 (es) 2022-05-24
US20120269874A1 (en) 2012-10-25
WO2008093346A3 (en) 2009-05-28
EA200970724A1 (ru) 2010-02-26
JP2010517996A (ja) 2010-05-27

Similar Documents

Publication Publication Date Title
US8617580B2 (en) Compositions for topical application comprising a peroxide and retinoid
US20200405665A1 (en) Methods for the treatment of rosacea
US20210007996A1 (en) Method for preparing particles comprising metal oxide coating and particles with metal oxide coating
US9868103B2 (en) Metal oxide coating of water insoluble ingredients
CA3051403C (en) Compositions for the treatment of rosacea
JP6788066B2 (ja) 過酸化ベンゾイルおよびアダパレンを含む局所投与用組成物
JP6811213B2 (ja) 酒さの治療のための組成物
IL189159A (en) Oxide metal cladding for water-insoluble components

Legal Events

Date Code Title Description
AS Assignment

Owner name: SOL-GEL TECHNOLOGIES LTD.,ISRAEL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TOLEDANO, OFER;SERTCHOOK, HANAN;LOBODA, NATALIA;AND OTHERS;SIGNING DATES FROM 20090609 TO 20090709;REEL/FRAME:023295/0461

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION

AS Assignment

Owner name: SOL-GEL TECHNOLOGIES LTD., ISRAEL

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TOLEDANO, OFER;SERTCHOOK, HANAN;LOBODA, NATALIA;AND OTHERS;SIGNING DATES FROM 20090906 TO 20090907;REEL/FRAME:055031/0064