CN103143311A - Method for extracting lavender extract by adopting continuous countercurrent tube type ultrasonic waves - Google Patents
Method for extracting lavender extract by adopting continuous countercurrent tube type ultrasonic waves Download PDFInfo
- Publication number
- CN103143311A CN103143311A CN201310105230XA CN201310105230A CN103143311A CN 103143311 A CN103143311 A CN 103143311A CN 201310105230X A CN201310105230X A CN 201310105230XA CN 201310105230 A CN201310105230 A CN 201310105230A CN 103143311 A CN103143311 A CN 103143311A
- Authority
- CN
- China
- Prior art keywords
- extract
- organic solvent
- lavender
- herba lysimachiae
- lysimachiae foenumgraeci
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 229940083980 lavender extract Drugs 0.000 title abstract 6
- 235000020723 lavender extract Nutrition 0.000 title abstract 6
- 239000000284 extract Substances 0.000 claims abstract description 50
- 244000178870 Lavandula angustifolia Species 0.000 claims abstract description 33
- 235000010663 Lavandula angustifolia Nutrition 0.000 claims abstract description 33
- 239000001102 lavandula vera Substances 0.000 claims abstract description 33
- 235000018219 lavender Nutrition 0.000 claims abstract description 33
- 239000003960 organic solvent Substances 0.000 claims abstract description 26
- 239000000203 mixture Substances 0.000 claims abstract description 20
- 238000001704 evaporation Methods 0.000 claims abstract description 11
- 230000008020 evaporation Effects 0.000 claims abstract description 11
- 238000002137 ultrasound extraction Methods 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 4
- 238000000926 separation method Methods 0.000 claims abstract description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 15
- 238000011144 upstream manufacturing Methods 0.000 claims description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical group CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 9
- 239000003818 cinder Substances 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 5
- 239000003791 organic solvent mixture Substances 0.000 claims description 4
- 238000010298 pulverizing process Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000006210 lotion Substances 0.000 description 4
- 230000003020 moisturizing effect Effects 0.000 description 4
- 239000000344 soap Substances 0.000 description 4
- 150000001720 carbohydrates Chemical class 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229930182478 glucoside Natural products 0.000 description 3
- 150000008131 glucosides Chemical class 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012165 plant wax Substances 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000000194 supercritical-fluid extraction Methods 0.000 description 2
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013557 residual solvent Substances 0.000 description 1
- 238000001256 steam distillation Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Landscapes
- Cosmetics (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The invention provides a method for extracting a lavender extract by adopting continuous countercurrent tube type ultrasonic waves. The method comprises the following steps of: picking stems, leaves and petals of lavender, drying in the shade, and crushing the dried materials into powder with the particle size of 10-40 meshes; inputting the crushed lavender into a continuous countercurrent tube type ultrasonic extractor at a speed of 100kg/h, inputting an organic solvent reversely at a flow speed of 500-1000L/h, maintaining the temperature of an ultrasonic extraction tube to be 25-50 DEG C, and extracting for 20-40 minutes to obtain an extraction mixture of the lavender and the organic solvent; inputting the extraction mixture of the lavender and the organic solvent into a liquid residue squeeze-drying separator, separating residue materials, and performing squeezing separation at a speed of 20-100kg/h to obtain a mixture of the lavender extract and the organic solvent; and inputting the mixture of the lavender extract and the organic solvent into a dynamic loop low-temperature evaporation concentrator, reducing the pressure to -0.08MPa, performing evaporation concentration, maintaining the temperature to be 20-40 DEG C, recovering the organic solvent, and collecting a concentrated extract, thus obtaining the lavender extract, wherein the yield of the lavender extract is more than or equal to 15%.
Description
Technical field
The present invention relates to the extraction of lavender, especially utilize continuous flow upstream tubular ultrasonic extraction equipment to extract the method for Herba Lysimachiae foenumgraeci extract, quality and productive rate are significantly improved.
Background technology
Traditional lavender extracting method: (1) steam distillation makes aromatic ester and the aromatic alcohol that single Lavender main component is effumability, at this moment Lavender recovery rate≤0.9%.Lavender is aromatic plant, except the Lavender that contains effumability, also contains in a large number to the very useful but not volatile plant wax of human body, protein, glucoside, carbohydrate content etc., can't realize extraction and application by traditional way of distillation; (2) CO
2The resulting Herba Lysimachiae foenumgraeci extract recovery rate of supercritical extraction≤5.6% finally extracts temperature 〉=50 ℃, and adopts this extracting method recovery rate lower, and the Herba Lysimachiae foenumgraeci extract effective ingredient is easily destroyed more than 50 ℃ the time; (3) the fixed bed lixiviate is sent out and is extracted Herba Lysimachiae foenumgraeci extract recovery rate≤2.9%, and this method can not be produced continuously, and the organic solvent rate of recovery is low, and production process is in non-air-tight state, easily environment is produced and pollutes.
The Herba Lysimachiae foenumgraeci extract that this method is obtained, except containing volatile Lavender, also contain the compositions such as not volatile plant wax, protein, glucoside, carbohydrate in a large number, account for 20～25% of extract total amount, and effective high composition of value, can't realize the value place of this namely this method application by traditional extraction method.
Summary of the invention
The object of the invention is to: adopt continuous flow upstream tubular ultrasonic extraction equipment to extract the method for Herba Lysimachiae foenumgraeci extract, the heat-sensitive substance that adequately protected improves effective component content and quality, reduces energy consumption, has important promotional value.
The object of the present invention is achieved like this: a kind of method of extracting Herba Lysimachiae foenumgraeci extract with continuous flow upstream tubular ultrasonic wave device, step by step:
1) will pluck high-quality, without stem, leaf, the petal of the bright lavender of rotting, be placed in the rear pulverizing of drying in the shade under natural conditions, wherein the water content of comminuting matter≤20%, granularity 10～40 orders;
2) lavender of pulverizing is inputted in continuous flow upstream tubular ultrasonic extractor with 100kg/h speed, with the reverse input organic solvent of 500～1000L/h flow velocity, keep 25～50 ℃ of ultrasonic extraction tube temperature, extract 20～40min, get the lavender organic solvent and extract mixture;
3) the lavender organic solvent is extracted mixture input melt cinder and extract separator, separate slag charge, carry out expression separation by 20～100kg/h, get the Herba Lysimachiae foenumgraeci extract ORGANIC SOLVENT MIXTURES;
4) with in Herba Lysimachiae foenumgraeci extract ORGANIC SOLVENT MIXTURES input dynamic circulation low-temperature evaporation inspissator, decompression is arrived-0.08MPa, and evaporation and concentration maintains the temperature at 20～40 ℃, reclaims organic solvent, collects concentrated extract, namely gets Herba Lysimachiae foenumgraeci extract;
Wherein organic solvent is ethanol or ethyl acetate.
The yield of described method Herba Lysimachiae foenumgraeci extract is 〉=15%.
Know-why of the present invention and effect: traditional way of distillation is extracted the Herba Lysimachiae foenumgraeci extract yield and is up to 0.9%; CO
2Supercritical extraction extracts the Herba Lysimachiae foenumgraeci extract yield and is up to 5.6%; The fixed bed extraction extracts the Herba Lysimachiae foenumgraeci extract recovery rate and is up to 2.9%.Ultrasonic technology and continuous flow upstream technology have been adopted, by ultrasonic wave stretching shaking force can the lavender compact tissue is loose, broken, plant cell wall is broken, the compositions such as the stronger plant wax of the fragrant effective ingredients such as lavender tissue space and intracellular ester class, alcohols and adhesive force, protein, glucoside, carbohydrate are fully freed, extracted by organic solvent dissolution; Next extracts, and whole process using adverse current state namely is extracted material and the agent solvent is arranged is to go in the same direction, and it is maximum that each section concentration difference keeps, and has guaranteed to use the solvent of minimum to reach best extraction effect, and extraction rate reached is more than 15%.
The technique effect of this method is, this Herba Lysimachiae foenumgraeci extract quality is good, adopts the continuous flow upstream tubular ultrasonic extraction method heat-sensitive substance that adequately protected, and improves effective component content and quality; Secondly Determination of Residual Organic Solvents is low, to extract, the functions such as melt cinder extruding separates, filter, concentrated, residual solvent Distillation recovery, solvent tail gas recovery organically combine, environmental contamination reduction, the effective ingredient of the lavender that obtains simultaneously, the input usefulness of promotion industry, show technological progress greatly.
Description of drawings
The present invention is further described by reference to the accompanying drawings.
Accompanying drawing is that continuous flow upstream tubular ultrasonic extraction equipment extracts the Herba Lysimachiae foenumgraeci extract process flow diagram;
As shown in the figure: pulverize lavender--input continuous flow upstream tubular ultrasonic extractor--reverse input organic solvent--the lavender ORGANIC SOLVENT MIXTURES---the input melt cinder is extracted separator--isolate slag charge and Herba Lysimachiae foenumgraeci extract ORGANIC SOLVENT MIXTURES---mixture input dynamic circulation low-temperature evaporation inspissator--organic solvent reclaims-gets Herba Lysimachiae foenumgraeci extract.
The specific embodiment
The present invention is further described in conjunction with the embodiments.
Embodiment
Raw material is disposed: will pluck high-quality, without rotten bright lavender stem, leaf, petal, and be placed under natural conditions and dry in the shade, its water content≤20%, it be pulverized 10 or 25 or 40 mesh sieves;
Preparation scheme 1
Get the lavender 100kg that pulverized 30 mesh sieves, meet in the continuous flow upstream tubular ultrasonic extractor of JB/T 20126-2009 national standard with the input of 100kg/h speed, organic solvent ethanol (95%) with the clean general happy bio tech ltd production in the reverse input of 800L/h flow velocity Xinjiang, keeping extracting 35min at 40 ℃ of ultrasonic extraction tube temperature, get the lavender alcohol mixture; After this mixture input extraction melt cinder is extracted separator, isolate slag charge and extract mixture; (0.08MPa) in the evaporation concentrator, keep 35 ℃ of temperature, recycling after the organic solvent ethanol evaporation reclaims is collected residue extract 17kg, is Herba Lysimachiae foenumgraeci extract, and yield is 17% will to extract mixture input dynamic circulation low-temperature reduced-pressure.
Preparation scheme 2
Get the lavender 100kg that pulverized 30 mesh sieves, meet in the continuous flow upstream tubular ultrasonic extractor of JB/T 20126-2009 national standard with the input of 100kg/h speed, the organic solvent ethyl acetate of producing with the reverse input of 1000L/h flow velocity Tianjin Fu Yu Fine Chemical Co., Ltd, keeping extracting 40min under ultrasonic extraction tube temperature 45 C, get the lavender ethyl acetate mixture; After this mixture input extraction melt cinder is extracted separator, isolate slag charge and extract mixture, to extract mixture input dynamic circulation low-temperature reduced-pressure (0.08MPa) in the evaporation concentrator, keep 40 ℃ of temperature, recycling after the evaporation of organic solvent ethyl acetate is reclaimed, collect residue extract 15kg, be Herba Lysimachiae foenumgraeci extract, yield is 15%.
The extract effect example that this method obtains.
1) application example of daily use chemicals articles for washing class such as lavender Manual perfumed soap:
In the Manual perfumed soap manufacture craft, after its saponification process is completed, the saponification liquor temperature add when remaining on 40 or 60 or 80 ℃ Herba Lysimachiae foenumgraeci extract 0.1 3 or 5%(kg/kg), that constant temperature stirs is cooling in the injection moulding mould, both cut apart, pack to get the lavender Manual perfumed soap.This Herba Lysimachiae foenumgraeci extract is applied to Manual perfumed soap, more than the sustainable 24h of the fragrant fragrance remaining time of body surface lavender, can play the effects such as moisturizing, moisturizing after using.
2) application example of cosmetics creme class skin care item lavender hand lotion:
When making skin care item hand lotion emulsification process and finish, add when keeping temperature 30 or 45 or 60 ℃ Herba Lysimachiae foenumgraeci extract 0.01 1.6 or 3%(kg/kg), be down to room temperature after constant temperature stirs, after packing, packing both the lavender hand lotion.This Herba Lysimachiae foenumgraeci extract is applied to hand lotion, and the sustainable lasting of body surface after using can play the effects such as moisturizing, moisturizing.
Claims (2)
1. method that adopts continuous flow upstream tubular ultrasonic ripple to extract Herba Lysimachiae foenumgraeci extract is characterized in that: step by step:
1) will pluck high-quality, without stem, leaf, the petal of the bright lavender of rotting, be placed in the rear pulverizing of drying in the shade under natural conditions, wherein the water content of comminuting matter≤20%, granularity 10～40 orders;
2) lavender of pulverizing is inputted in continuous flow upstream tubular ultrasonic extractor with 100kg/h speed, with the reverse input organic solvent of 500～1000L/h flow velocity, keep 25～50 ℃ of ultrasonic extraction tube temperature, extract 20～40min, get the lavender organic solvent and extract mixture;
3) the lavender organic solvent is extracted mixture input melt cinder and extract separator, separate slag charge, carry out expression separation by 20～100kg/h, get the Herba Lysimachiae foenumgraeci extract ORGANIC SOLVENT MIXTURES;
4) with in Herba Lysimachiae foenumgraeci extract ORGANIC SOLVENT MIXTURES input dynamic circulation low-temperature evaporation inspissator, decompression is arrived-0.08MPa, and evaporation and concentration maintains the temperature at 20～40 ℃, reclaims organic solvent, collects concentrated extract, namely gets Herba Lysimachiae foenumgraeci extract;
Wherein organic solvent is ethanol or ethyl acetate.
2. method according to claim 1, it is characterized in that: the yield of Herba Lysimachiae foenumgraeci extract is 〉=15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310105230.XA CN103143311B (en) | 2013-03-28 | 2013-03-28 | Method for extracting lavender extract by adopting continuous countercurrent tube type ultrasonic waves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310105230.XA CN103143311B (en) | 2013-03-28 | 2013-03-28 | Method for extracting lavender extract by adopting continuous countercurrent tube type ultrasonic waves |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103143311A true CN103143311A (en) | 2013-06-12 |
| CN103143311B CN103143311B (en) | 2015-07-08 |
Family
ID=48541786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310105230.XA Active CN103143311B (en) | 2013-03-28 | 2013-03-28 | Method for extracting lavender extract by adopting continuous countercurrent tube type ultrasonic waves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103143311B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103385832A (en) * | 2013-07-24 | 2013-11-13 | 云南西草资源开发有限公司 | Anti-aging cosmetic taking lavender extract as main active ingredient |
| CN103409240A (en) * | 2013-07-26 | 2013-11-27 | 郑刚 | Method for extracting chamomile extract by using pot-type ultrasonic device |
| CN103409239A (en) * | 2013-07-26 | 2013-11-27 | 郑刚 | Method for extracting chamomile extract by using countercurrent tube type ultrasonic device |
| CN106512467A (en) * | 2015-09-13 | 2017-03-22 | 王建卫 | Economical solid-liquid transfer method |
-
2013
- 2013-03-28 CN CN201310105230.XA patent/CN103143311B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| 李紫薇等: "超声波辅助提取狭叶薰衣草总黄酮的研究", 《伊犁师范学院学报（自然科学版）》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103385832A (en) * | 2013-07-24 | 2013-11-13 | 云南西草资源开发有限公司 | Anti-aging cosmetic taking lavender extract as main active ingredient |
| CN103385832B (en) * | 2013-07-24 | 2015-09-23 | 云南西草资源开发有限公司 | A kind of take Herba Lysimachiae foenum-graeci extract as the anti-aging cosmetics of main active |
| CN103409240A (en) * | 2013-07-26 | 2013-11-27 | 郑刚 | Method for extracting chamomile extract by using pot-type ultrasonic device |
| CN103409239A (en) * | 2013-07-26 | 2013-11-27 | 郑刚 | Method for extracting chamomile extract by using countercurrent tube type ultrasonic device |
| CN106512467A (en) * | 2015-09-13 | 2017-03-22 | 王建卫 | Economical solid-liquid transfer method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103143311B (en) | 2015-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Giwa et al. | Utilizing orange peels for essential oil production | |
| CN102424770A (en) | Extraction technology of perilla frutescens essential oil | |
| CN103143311B (en) | Method for extracting lavender extract by adopting continuous countercurrent tube type ultrasonic waves | |
| CN103160376A (en) | Method for extracting lavender extract with tank-type ultrasonic machine | |
| CN103409239A (en) | Method for extracting chamomile extract by using countercurrent tube type ultrasonic device | |
| CN105273843A (en) | Extraction method of wood essential oil | |
| CN102106928B (en) | Method for preparing high-purity oil tea saponins | |
| CN104622759A (en) | Extracting method and application for adenium obesum leaf cell extract | |
| CN102533433A (en) | Method for supercritical extraction of sea buckthorn oil | |
| CN103170294A (en) | Method for extracting rose flower extractives by utilizing continuous countercurrent pipe type ultrasonic equipment | |
| CN102586004A (en) | Method for continuously extracting orange oil and limonin from citrus reticulata | |
| CN103232519A (en) | Technical method for continuously extracting effective ingredients in tea seeds | |
| CN102504940A (en) | Method for extracting nitraria seed oil from subcritical fluid | |
| CN103409240A (en) | Method for extracting chamomile extract by using pot-type ultrasonic device | |
| CN111116322A (en) | Method for extracting cannabidiol beneficial to human health from industrial cannabis sativa | |
| CN103143312B (en) | Method for extracting rose extract by utilizing a pot-type ultrasonic equipment | |
| CN104817602B (en) | The extracting method and its application process of a kind of aurantiin | |
| CN100344602C (en) | Technological method of continuous extracting effective components in eucommia ulmoides kernel by super critical carbon dioxide | |
| CN108559635B (en) | Extraction process of perilla oil | |
| CN106753912A (en) | A kind of shinyleaf yellowhorn oil handmade soap and preparation method thereof | |
| JP6370608B2 (en) | Method for producing anti-inflammatory substance | |
| CN105670797A (en) | Bergamot essential oil extraction method | |
| Do et al. | Mechanical Extraction of Neem Seed Kernel (Azadirachta indica A. Juss.) Harvesting in Ninh Thuan, Viet Nam by Using Hydraulic Pressing: Effect of Processing Parameters | |
| CN103409237A (en) | Method used for extracting chamomille extract by supercritical carbon dioxide extraction | |
| CN107281273A (en) | A kind of method of supercritical carbon dioxide extracting fruit of glossy privet liposoluble constituent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150910 Address after: 835000 Bayan Dai village, Dai Town, Yining, Yili Kazakh Autonomous Prefecture, the Xinjiang Uygur Autonomous Region, Bayan Patentee after: Yili lavender products Co. Ltd. Mayila St. Address before: 835000 the Xinjiang Uygur Autonomous Region Yili Kazak Autonomous Prefecture of Yining City, Bayan Dai Zhen Yili lavender products Co. Ltd. Mayila St. Patentee before: Zheng Gang Patentee before: Wang Yubiao |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20130612 Assignee: Yili lavender products Co. Ltd. Mayila St. Assignor: Zheng Gang|Wang Yubiao Contract record no.: 2015650000037 Denomination of invention: Method for extracting lavender extract by adopting continuous countercurrent tube type ultrasonic waves Granted publication date: 20150708 License type: Exclusive License Record date: 20150831 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |