Production method for cyclohexanedicarboxylic acid compound, dicyanocyclohexane compound and bis(aminomethyl)cyclohexane compound
US-11584705-B2 · Feb 21, 2023 · US
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Azelaic acid
Azelaic acid · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C55/18 |
| Official title | Azelaic acid |
| Display label | Azelaic acid |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Production of carboxylic acids from vicinal diols
US-11453634-B2 · Sep 27, 2022 · US
Compositions and methods for the treatment of inflammatory skin diseases and cancer
US-2021269412-A1 · Sep 2, 2021 · US
Process for the hydrolysis of dicarboxylic acid triglycerides
US-11028036-B2 · Jun 8, 2021 · US
Production method for cyclohexanedicarboxylic acid compound, dicyanocyclohexane compound and bis(aminomethyl)cyclohexane compound
US-2021024445-A1 · Jan 28, 2021 · US
Production of carboxylic acids from vicinal diols
US-2020325095-A1 · Oct 15, 2020 · US
Improved process for the hydrolysis of dicarboxylic acid triglycerides
US-2020325094-A1 · Oct 15, 2020 · US
Process for the preparation of purified dicarboxylic acids
US-10654786-B2 · May 19, 2020 · US
Process for the preparation of purified dicarboxylic acids
US-2019202768-A1 · Jul 4, 2019 · US
Continuous process of oxidative cleavage of vegetable oils
US-10150725-B2 · Dec 11, 2018 · US
Processes for making azelaic acid and derivatives thereof
US-10017447-B2 · Jul 10, 2018 · US
Continuous process of oxidative cleavage of vegetable oils
US-2018044277-A1 · Feb 15, 2018 · US
Continuous process of oxidative cleavage of vegetable oils
US-9790160-B2 · Oct 17, 2017 · US
Ozonolysis operations for generation of reduced and/or oxidized product streams
US-9604898-B2 · Mar 28, 2017 · US
Combined synthesis of a nitrile-ester/acid and of a diester/diacid
US-9567293-B2 · Feb 14, 2017 · US
Process for preparing a carboxylic acid from a diol or from an epoxide by oxidative cleavage
US-9359280-B2 · Jun 7, 2016 · US
Continuous process of oxidative cleavage of vegetable oils
US-9346732-B2 · May 24, 2016 · US
Process for the preparation of azeleic acid from 9-octadecenedioic acid
US-9302972-B2 · Apr 5, 2016 · US
Process for preparing a carboxylic acid from a diol or from an epoxide by oxidative cleavage
US-2015210623-A1 · Jul 30, 2015 · US
Method of oxidative molecular cleavage of a fatty compound
US-9090552-B2 · Jul 28, 2015 · US