EP3982785A1 - A hair oil applicator - Google Patents

A hair oil applicator

Info

Publication number
EP3982785A1
EP3982785A1 EP20728070.2A EP20728070A EP3982785A1 EP 3982785 A1 EP3982785 A1 EP 3982785A1 EP 20728070 A EP20728070 A EP 20728070A EP 3982785 A1 EP3982785 A1 EP 3982785A1
Authority
EP
European Patent Office
Prior art keywords
container
oil
hair oil
dispenser
applicator
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.)
Granted
Application number
EP20728070.2A
Other languages
German (de)
French (fr)
Other versions
EP3982785B1 (en
Inventor
Anup Kisan CHALKE
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.)
Unilever Global IP Ltd
Unilever IP Holdings BV
Original Assignee
Unilever Global IP Ltd
Unilever IP Holdings BV
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 Unilever Global IP Ltd, Unilever IP Holdings BV filed Critical Unilever Global IP Ltd
Publication of EP3982785A1 publication Critical patent/EP3982785A1/en
Application granted granted Critical
Publication of EP3982785B1 publication Critical patent/EP3982785B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D19/00—Devices for washing the hair or the scalp; Similar devices for colouring the hair
    • A45D19/02—Hand-actuated implements, e.g. hand-actuated spray heads
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D24/00—Hair combs for care of the hair; Accessories therefor
    • A45D24/22—Combs with dispensing devices for liquids, pastes or powders
    • A—HUMAN NECESSITIES
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D24/00—Hair combs for care of the hair; Accessories therefor
    • A45D24/04—Multi-part combs
    • A45D24/10—Multi-part combs combined with additional devices

Definitions

  • US5152305 A discloses a dye applicator which includes a hollow tubular housing with screw-threaded caps on both longitudinal ends thereof.
  • One of the caps includes a centrally located outlet through which a hollow stem of an integrally formed nozzle unit is fitted.
  • a manually actuable piston is provided within the tubular housing and includes an actuator member longitudinally slidable along the length of and external to the tubular housing.
  • a protruding track is longitudinally provided on the inner wall of the tubular housing and mates with a corresponding recess of the piston.
  • a liner such as a disposable plastic bag is provided within the tubular housing above the piston for receiving a hair dispensable product therein. The screw- threaded end caps confine the contents of the applicator during use thereof.
  • the present inventors have been trying to solve the problems associated with hair oil containers.
  • the present invention relates to a hair oil applicator comprising:
  • the hair oil applicator is shown in the perspective view with the closure cum dispenser (6) in the closed position on the container (1).
  • the container (1) comprises a base (2), upwardly extending walls (3) leading up to a shoulder portion (14).
  • closure cum dispenser (6) which comprises the cylindrical cap (7) on which is placed a horizontally placed distributor tube (9) on top of which are upwardly extending nozzles (10).
  • the hair oil applicator is shown with 10 nozzles.
  • the closure cum dispenser is shown unscrewed and distant from the container.
  • the upper end of the container contains the threaded portion (4).
  • the top surface of the container comprises a flat resilient member (5).
  • the flat resilient member comprises an upwardly extending breakable tab (11).
  • the cylindrical cap (7) portion of the closure cum dispenser comprises counter threads (8) on the inner side.
  • the vertical cross-sectional view of the closure cum dispenser is depicted.
  • the cylindrical cap comprises two stoppers on the inner side thereof.
  • the inner cylindrical stopper (12) presses against the resilient member (5) when the closure cum dispenser is screwed on to the threaded portion of the container.
  • the outer cylindrical stopper (13) is biased against the perimeter of the upper end of the container.
  • the uniform size of a port that is created as a result of breaking of the tab ensures that the flow of oil through the port and thereafter out from the nozzles is uniform. This is a significant improvement over prior dispensers where the resilient member had to be manually torn with a knife or a thick pin to create the port.
  • the port thus created was of uneven size and shape thus creating uneven flow of the oil out of the port and into the nozzles.
  • the closure cum dispenser (6) is then tightly screwed back on to the threaded portion (4) on the container (1). As the closure cum dispenser is tightened to the ends of the threads the inner cylindrical stopper (12) is pressed on to the resilient member and the outer cylindrical stopper (13) is biased against the perimeter of the top surface.
  • the hair oil applicator is inverted with the nozzles (10) placed on the scalp of the person wishing to apply the oil.
  • the container (1) is then squeezed creating a positive pressure on the oil which flows through the port created when the breakable tab was broken, out through the distributor tube(6), into each of the nozzles (10) and on to the desired area of the scalp.
  • the oil thus applied may then be rubbed on to the scalp and the hair using the nozzles themselves or using the hands or with the use of a comb.
  • the hair oil applicator may then be placed back on its base (2) at a desired place during which time the residual oil from the nozzles flow back through the distributor tube, through the port and back into the container.
  • the inner cylindrical stopper (12) and the outer cylindrical stopper (13) respectively biased against the resilient member and the perimeter of the upper end of the top surface, ensure no space for the oil to leak out of the threads, thereby ensuring leak tightness.
  • the flat resilient member on the top surface of the container is preferably disc shaped.
  • Suitable material of construction of the flat resilient member are linear low-density polyethylene (LLDPE), LDPE, elastomer, polyurethane, or HDPE.
  • LLDPE linear low-density polyethylene
  • LDPE linear low-density polyethylene
  • elastomer polyurethane
  • HDPE high-density polyethylene
  • the most preferred material from which the resilient member is made is LLDPE.
  • the flat resilient member when in the shape of a disc has a diameter preferably in the range of 1 cm to 5 cm, more preferably in the range of 1.5 cm to 2 cm.
  • the breakable tab on the resilient member is preferably cylindrical. Suitable material of construction of the breakable tab are LLDPE, LDPE, elastomer, polyurethane, or HDPE, most preferably LLDPE.
  • the outer surface of the breakable tab is preferably knurled to ensure ease of gripping when it is to be broken. It is preferred for the ease of manufacture that the resilient member and the breakable tab are made of the same material of construction and ideally, they are made from a single mould.
  • the closure cum dispenser is preferably made of PP, HDPE, LDPE, more preferably PP.
  • the hair oil may be dispensed through any number of nozzles preferably from 5 to 15 nozzles, furthermore preferably from 8 to 12 nozzles.

Landscapes

  • Closures For Containers (AREA)

Abstract

Disclosed is a hair oil applicator comprising: (a) a container (1) comprising a base (2), upwardly extending walls (3) therefrom, threaded portion (4) at the upper end of the container and a top surface comprising a flat resilient member (5); (b) a closure cum dispenser (6) comprising a cylindrical cap (7), said cap comprising counter threads (8) on the inner side thereof capable of screw engagement with the threaded portion (4) of the container; (c) said cylindrical cap comprising an elongated horizontally placed distributor tube (9) on the top surface thereof; and said distributor tube comprising plurality of upwardly extending nozzles (10) configured to dispense the oil from the container; characterized in that the resilient member comprises an upwardly extending breakable tab (11) which when broken ensures that the distributor tube is in fluid communication with the oil in the container; and said cylindrical cap comprising an inner cylindrical stopper (12) and an outer cylindrical stopper (13) on the inner side thereof; said inner cylindrical stopper (12) capable of providing leakproof sealing for the oil when the closure-cum-dispenser (6) is screwed on tightly to the container (1); and said outer cylindrical stopper (13) capable of sitting flush against the perimeter of the top surface; thereby ensuring that the hair oil applicator is leak-proof around the threaded joints; and providing uniform dispensing of the oil through the nozzles (10).

Description

A HAIR OIL APPLICATOR
Field of the Invention The present invention relates to a hair oil applicator. The invention more particularly relates to a container fitted with a closure comprising an applicator that ensures highly uniform application of the oil on to the hair and especially the scalp while eliminating leakage from the screwed on closure threads that is often observed with conventional bottle closures.
Background of the Invention
Oiling of hair is a habit in many countries especially in South Asia. The application of hair oil of vegetable origin like coconut oil is believed to keep the head cool, especially in the hot and humid tropical countries. Further, hair oil is blended with herbal actives that are believed to nourish the hair and provide desired attributes like low breakage, less split ends, shine, low hair fall etc. In more recent times, vegetable oils are blended with synthetic oils like paraffin oils, silicones etc to provide a more light feel, less stickiness and improved conditioning.
Traditionally hair oil is stored in containers from which it is poured out in the cupped palm, rubbed with both palms and applied on to the hair and scalp. Of late, people are less amenable to applying oil using their hands as it requires them to wash their hands with soap after such application. To solve this problem containers fitted with one or more applicator nozzles have been manufactured and sold.
One problem encountered with such containers is the flowback of the residual oil from the nozzles into the container lid portion to cause leakage from the threaded joints. Another problem, especially with containers having multiple applicator nozzles is the uneven flow of oil through the various nozzles.
JP2004321708 A (Kanebo) discloses a comb to apply a liquid to the hair.
US5152305 A (Niv Lundy) discloses a dye applicator which includes a hollow tubular housing with screw-threaded caps on both longitudinal ends thereof. One of the caps includes a centrally located outlet through which a hollow stem of an integrally formed nozzle unit is fitted. A manually actuable piston is provided within the tubular housing and includes an actuator member longitudinally slidable along the length of and external to the tubular housing. To ensure that the piston does not axially rotate within the tubular housing during a longitudinal sliding motion thereof, a protruding track is longitudinally provided on the inner wall of the tubular housing and mates with a corresponding recess of the piston. A liner such as a disposable plastic bag is provided within the tubular housing above the piston for receiving a hair dispensable product therein. The screw- threaded end caps confine the contents of the applicator during use thereof.
The present inventors have been trying to solve the problems associated with hair oil containers. We have now determined a non-obvious solution to at least some of the problems, in the form of a breakoff tab on the closure nozzle along with specific configuration of the inner side of the threaded cap.
It is an object of the present invention to provide for the above benefit of uniform application while ensuring minimal leakage around the threaded joint of the cap and the container body.
It is another object of the present invention to provide for a hair oil applicator that ensures uniform flow of oil and ease of application in an even manner on to the scalp and hair.
Summary of the Invention
In accordance with a first aspect the present invention relates to a hair oil applicator comprising:
(a) a container (1) comprising a base (2), upwardly extending walls (3) therefrom, threaded portion (4) at the upper end of the container and a top surface comprising a flat resilient member (5);
(b) a closure cum dispenser (6) comprising a cylindrical cap (7), said cap
comprising counter threads (8) on the inner side thereof capable of screw engagement with the threaded portion (4) of the container; (c) said cylindrical cap comprising an elongated horizontally placed distributor tube (9) on the top surface thereof; and said distributor tube comprising plurality of upwardly extending nozzles (10) configured to dispense the oil from the container;
characterized in that the resilient member comprises an upwardly extending breakable tab (11) which when broken ensures that the distributor tube is in fluid communication with the oil in the container; and said cylindrical cap comprising an inner cylindrical stopper (12) and an outer cylindrical stopper (13) on the inner side thereof;
said inner cylindrical stopper (12) capable of providing leakproof sealing for the oil when the closure-cum-dispenser (6) is screwed on tightly to the container (1); and said outer cylindrical stopper (13) capable of sitting flush against the perimeter of the top surface; thereby ensuring that the hair oil applicator is leak-proof around the threaded joints and providing uniform dispensing of the oil through the nozzles (10). In accordance with a second aspect the present invention relates to a closure cum dispenser (6) for a container (1) of a hair oil applicator, said dispenser (6) comprising a cylindrical cap (7) which comprises:
(a) an elongated horizontally placed distributor tube (9) on the top surface thereof where said distributor tube comprises plurality of upwardly extending nozzles (10) configured to dispense the oil from the container (1);
(b) an inner cylindrical stopper (12) and an outer cylindrical stopper (13) on the inner side thereof, where said inner cylindrical stopper (12) is capable of providing leakproof sealing for the oil when the closure-cum-dispenser (6) is screwed on tightly to the container (1) and said outer cylindrical stopper (13) capable of sitting flush against the perimeter of the top surface thereby ensuring that the hair oil applicator is leak-proof around the threaded joints and provides uniform dispensing of the oil through the nozzles (10); and,
(c) counter threads (8) on the inner side of said dispenser (6) capable of screw engagement with threaded portion (4) of the container.
The invention will now be illustrated with the help of the following embodiment described with the help of the following figures. They are meant merely to illustrate one particular embodiment of the invention and are in no way meant to limit the scope of the invention which is to be understood to be defined by the claims herein below. Detailed Description of the Invention
Fig 1 is a perspective view of the hair oil applicator of the invention with the closure cum dispenser screwed on to the container.
Fig 2 is a perspective view of the hair oil applicator with the closure cum dispenser unscrewed from the container with the threads on the container and the counter threads on the closure cum dispenser clearly visible. Fig 3 is the vertical cross-sectional view of the inner cylindrical stopper and the outer cylindrical stopper on the inside of the cylindrical cap sitting flush against the resilient member and the perimeter of the top surface respectively to ensure the oil does not leak when the closure is in the closed position on the container. Fig 4 is cut-away view of the actual model of the bottle where the inner cylindrical stopper and the outer cylindrical stopper (as in Fig. 3) are shown in the respective positions when the closure is in the closed position.
Detailed Description of the Drawings
Referring to Fig 1 , the hair oil applicator is shown in the perspective view with the closure cum dispenser (6) in the closed position on the container (1). The container (1) comprises a base (2), upwardly extending walls (3) leading up to a shoulder portion (14). Upward of the shoulder position is closure cum dispenser (6) which comprises the cylindrical cap (7) on which is placed a horizontally placed distributor tube (9) on top of which are upwardly extending nozzles (10). In the present embodiment, the hair oil applicator is shown with 10 nozzles.
Referring to Fig.2, the closure cum dispenser is shown unscrewed and distant from the container. The upper end of the container contains the threaded portion (4). The top surface of the container comprises a flat resilient member (5). The flat resilient member comprises an upwardly extending breakable tab (11). As can be seen, the cylindrical cap (7) portion of the closure cum dispenser comprises counter threads (8) on the inner side. Referring to Fig. 3, the vertical cross-sectional view of the closure cum dispenser is depicted. As can be seen, the cylindrical cap comprises two stoppers on the inner side thereof. The inner cylindrical stopper (12) presses against the resilient member (5) when the closure cum dispenser is screwed on to the threaded portion of the container. At the same time, the outer cylindrical stopper (13) is biased against the perimeter of the upper end of the container.
Referring to Fig 4, a cut out view of the actual model of the closure cum dispenser is shown. As can be seen, the cylindrical cap is screwed tightly on to the threaded portion (4) of the container with the counter threads (8). Like in Fig 3, the inner cylindrical stopper (12) is shown pressed against the resilient member (5) while the outer cylindrical stopper (13) is biased against the perimeter of the upper end of the container. Also shown in Fig 4 is the breakable tab (11) and the nozzles (10). When the hair oil applicator is to be used, the closure cum dispenser (6) is unscrewed from the container (1). The breakable tab (11) is then broken and thrown away. This ensures that the port created (not shown in the figures) on the resilient member (5) is of a uniform size. The uniform size of a port that is created as a result of breaking of the tab ensures that the flow of oil through the port and thereafter out from the nozzles is uniform. This is a significant improvement over prior dispensers where the resilient member had to be manually torn with a knife or a thick pin to create the port. The port thus created was of uneven size and shape thus creating uneven flow of the oil out of the port and into the nozzles. The closure cum dispenser (6) is then tightly screwed back on to the threaded portion (4) on the container (1). As the closure cum dispenser is tightened to the ends of the threads the inner cylindrical stopper (12) is pressed on to the resilient member and the outer cylindrical stopper (13) is biased against the perimeter of the top surface. To dispense the hair oil, the hair oil applicator is inverted with the nozzles (10) placed on the scalp of the person wishing to apply the oil. The container (1) is then squeezed creating a positive pressure on the oil which flows through the port created when the breakable tab was broken, out through the distributor tube(6), into each of the nozzles (10) and on to the desired area of the scalp.
The oil thus applied may then be rubbed on to the scalp and the hair using the nozzles themselves or using the hands or with the use of a comb. After use, the hair oil applicator may then be placed back on its base (2) at a desired place during which time the residual oil from the nozzles flow back through the distributor tube, through the port and back into the container. The inner cylindrical stopper (12) and the outer cylindrical stopper (13) respectively biased against the resilient member and the perimeter of the upper end of the top surface, ensure no space for the oil to leak out of the threads, thereby ensuring leak tightness.
Detailed Description of the Invention
The invention relates to a hair oil applicator for dispensing hair oil from a container using the applicator of the invention. The container is preferably square, rectangular, hexagonal or cylindrical shape, preferably it is cylindrical. The container may be of a suitable volume ranging from 10 ml to 2000 ml, preferably from 50 ml to 200 ml. The container is preferably made of a polymeric material which is amenable to be squeezed by hand. Suitable polymeric materials are high density polyethylene (HDPE), poly propylene (PP), polyethylene terephthalate (PET), multilayer of low -density
polyethylene (LDPE) and HDPE. The most preferred material of construction of the container is HDPE.
The flat resilient member on the top surface of the container is preferably disc shaped. Suitable material of construction of the flat resilient member are linear low-density polyethylene (LLDPE), LDPE, elastomer, polyurethane, or HDPE. The most preferred material from which the resilient member is made is LLDPE. The flat resilient member when in the shape of a disc has a diameter preferably in the range of 1 cm to 5 cm, more preferably in the range of 1.5 cm to 2 cm.
The breakable tab on the resilient member is preferably cylindrical. Suitable material of construction of the breakable tab are LLDPE, LDPE, elastomer, polyurethane, or HDPE, most preferably LLDPE. The outer surface of the breakable tab is preferably knurled to ensure ease of gripping when it is to be broken. It is preferred for the ease of manufacture that the resilient member and the breakable tab are made of the same material of construction and ideally, they are made from a single mould. The closure cum dispenser is preferably made of PP, HDPE, LDPE, more preferably PP. The hair oil may be dispensed through any number of nozzles preferably from 5 to 15 nozzles, furthermore preferably from 8 to 12 nozzles.

Claims

1. A hair oil applicator comprising:
(a) a container (1) comprising a base (2), upwardly extending walls (3) therefrom, threaded portion (4) at the upper end of the container and a top surface comprising a flat resilient member (5);
(b) a closure cum dispenser (6) comprising a cylindrical cap (7), said cap comprising counter threads (8) on the inner side thereof capable of screw engagement with the threaded portion (4) of the container;
(c) said cylindrical cap comprising an elongated horizontally placed
distributor tube (9) on the top surface thereof; and said distributor tube comprising plurality of upwardly extending nozzles (10) configured to dispense the oil from the container;
characterized in that the resilient member comprises an upwardly extending breakable tab (11) which when broken ensures that the distributor tube is in fluid communication with the oil in the container; and said cylindrical cap comprising an inner cylindrical stopper (12) and an outer cylindrical stopper (13) on the inner side thereof;
said inner cylindrical stopper (12) capable of providing leakproof sealing for the oil when the closure-cum-dispenser (6) is screwed on tightly to the container (1); and
said outer cylindrical stopper (13) capable of sitting flush against the perimeter of the top surface;
thereby ensuring that the hair oil applicator is leak-proof around the threaded joints; and providing uniform dispensing of the oil through the nozzles (10).
2. A hair oil applicator as claimed in claim 1 wherein said container is cylindrical.
3. A hair oil applicator as claimed in claim 1 or 2 wherein said flat resilient member is disc shaped.
4. A hair oil applicator as claimed in any one of the preceding claims wherein the flat resilient member is made of LLDPE, LDPE, elastomer, polyurethane, or HDPE, preferably LLDPE.
5. A hair oil applicator as claimed in any one of the preceding claims comprising 5 to 15 nozzles.
6. A hair oil applicator as claimed in any one of the preceding claims wherein the breakable tab is cylindrical.
7. A hair oil applicator as claimed in any one of the preceding claims wherein the breakable tab has a knurled outer surface.
8. A hair oil applicator as claimed in any one of the preceding claims wherein the breakable tab is made of LLDPE, LDPE, elastomer, polyurethane, or HDPE, preferably LLDPE.
9. A hair oil applicator as claimed in any one of the preceding claims wherein the container is made of HDPE, PP, PET, multilayer of LDPE and HDPE, preferably HDPE.
10. A hair oil applicator as claimed in any one of the preceding claims wherein the closure cum dispenser is made of PP, HDPE, or LDPE, preferably PP.
11. A closure cum dispenser (6) for a container (1) of a hair oil applicator, said dispenser (6) comprising a cylindrical cap (7) which comprises:
(a) an elongated horizontally placed distributor tube (9) on the top surface thereof where said distributor tube comprises plurality of upwardly extending nozzles (10) configured to dispense the oil from the container (1);
(b) an inner cylindrical stopper (12) and an outer cylindrical stopper (13) on the inner side thereof, where said inner cylindrical stopper (12) is capable of providing leakproof sealing for the oil when the closure-cum- dispenser (6) is screwed on tightly to the container (1) and said outer cylindrical stopper (13) capable of sitting flush against the perimeter of the top surface thereby ensuring that the hair oil applicator is leak-proof around the threaded joints and provides uniform dispensing of the oil through the nozzles (10); and,
(c) counter threads (8) on the inner side of said dispenser (6) capable of screw engagement with threaded portion (4) of the container.
EP20728070.2A 2019-06-17 2020-05-28 A hair oil applicator Active EP3982785B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19180513 2019-06-17
PCT/EP2020/064906 WO2020254088A1 (en) 2019-06-17 2020-05-28 A hair oil applicator

Publications (2)

Publication Number Publication Date
EP3982785A1 true EP3982785A1 (en) 2022-04-20
EP3982785B1 EP3982785B1 (en) 2024-08-14

Family

ID=66951794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20728070.2A Active EP3982785B1 (en) 2019-06-17 2020-05-28 A hair oil applicator

Country Status (6)

Country Link
US (1) US20220202160A1 (en)
EP (1) EP3982785B1 (en)
BR (1) BR112021022967A2 (en)
MY (1) MY207998A (en)
WO (1) WO2020254088A1 (en)
ZA (1) ZA202109197B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11857051B2 (en) * 2020-08-31 2024-01-02 L'oreal Composition dispenser applicator with dynamically adjustable protrusions, bristles or tines, and method of use
US20250325086A1 (en) * 2022-01-25 2025-10-23 Irie Ventures Scalp applicator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3477447A (en) * 1968-01-05 1969-11-11 Gladys C Eldredge Applicator for hair tinting liquids and the like
DE3580737D1 (en) * 1984-10-05 1991-01-10 Hoffmann Ag Geb PLASTIC SCREW CAP.
US5152305A (en) 1991-09-13 1992-10-06 Hair Master Applicator device
US6976495B2 (en) * 2002-07-19 2005-12-20 Revlon Consumer Products Corporation Cosmetic applicator and storage container
JP4356087B2 (en) 2003-04-28 2009-11-04 花王株式会社 Cap with comb

Also Published As

Publication number Publication date
MY207998A (en) 2025-04-03
EP3982785B1 (en) 2024-08-14
US20220202160A1 (en) 2022-06-30
BR112021022967A2 (en) 2022-01-04
WO2020254088A1 (en) 2020-12-24
ZA202109197B (en) 2023-10-25

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