Method for enzymatic resolution of chiral substances
US-12319952-B2 · Jun 3, 2025 · US
by esterification of carboxylic acid groups in the enantiomers or the inverse reaction
by esterification of carboxylic acid groups in the enantiomers or the inverse reaction · 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 | C12P41/005 |
| Official title | {by esterification of carboxylic acid groups in the enantiomers or the inverse reaction} |
| Display label | by esterification of carboxylic acid groups in the enantiomers or the inverse reaction |
| Total patents | 46 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 5 |
| 2017 | 5 |
| 2018 | 7 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cyclohexenecarboxylate ester hydrolase, and mutant, coding gene, expression vector, recombinant bacterium and use thereof
US-12123029-B2 · Oct 22, 2024 · US
Novel hydrolase and method for producing (1s,2s)-1-alkoxycarbonyl-2-vinylcyclopropane carboxylic acid using same
US-2023323317-A1 · Oct 12, 2023 · US
Hydrolase and method for producing (1S,2S)-1-alkoxycarbonyl-2-vinylcyclopropane carboxylic acid using same
US-11572551-B2 · Feb 7, 2023 · US
Cyclohexenecarboxylate ester hydrolase, and mutant, coding gene, expression vector, recombinant bacterium and use thereof
US-2022396781-A1 · Dec 15, 2022 · US
Acinetobacter and use thereof in production of chiral 3-cyclohexene-1-carboxylic acid
US-11441133-B2 · Sep 13, 2022 · US
Process for the preparation of unsaturated carboxylic acids by carbonylation of allyl alcohols and their acylation products
US-2022089559-A1 · Mar 24, 2022 · US
A Method for Enzymatic Resolution of Chiral Substances
US-2022017935-A1 · Jan 20, 2022 · US
Process for the preparation of unsaturated carboxylic acids by carbonylation of allyl alcohols and their acylation products
US-11192873-B2 · Dec 7, 2021 · US
Method for the preparation of (3E,7E)-homofarnesic acid or (3E,7E)-homofarnesic acid ester
US-11136611-B2 · Oct 5, 2021 · US
Acinetobacter and use thereof in production of chiral 3-cyclohexene-1-carboxylic acid
US-2021230566-A1 · Jul 29, 2021 · US
Enzymatic processes for the preparation of (±)-2-(difluoromethyl)-1-(alkoxycarbonyl)-cyclopropanecarboxylic acid and (±)-2-(vinyl)-1-(alkoxycarbonyl)-cyclopropanecarboxylic acid
US-2021087592-A1 · Mar 25, 2021 · US
Novel hydrolase and method for producing (1s,2s)-1-alkoxycarbonyl-2-vinylcyclopropane carboxylic acid using same
US-2021024905-A1 · Jan 28, 2021 · US
Enzymatic processes for the preparation of (±)-2-(difluoromethyl)-1-(alkoxycarbonyl)-cyclopropanecarboxylic acid and (±)-2-(vinyl)-1-(alkoxycarbonyl)-cyclopropanecarboxylic acid
US-10689675-B2 · Jun 23, 2020 · US
Method for the preparation of (3e,7e)-homofarnesic acid or (3e,7e)-homofarnesic acid ester
US-2020123586-A1 · Apr 23, 2020 · US
Difluoroalkylcyclopropyl amino acids and esters, and syntheses thereof
US-2020115329-A1 · Apr 16, 2020 · US
Synthetic route to anti-viral agents
US-2020095230-A1 · Mar 26, 2020 · US
Process for the preparation of unsaturated carboxylic acids by carbonylation of allyl alcohols and their acylation products
US-2020055834-A1 · Feb 20, 2020 · US
Enzymatic process for the preparation of (1s,2r)-2-(difluoromethyl)-1-(propoxycarbonyl)cyclopropanecarboxylic acid
US-2020024621-A1 · Jan 23, 2020 · US
Synthetic route to anti-viral agents
US-10442792-B2 · Oct 15, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C12P41/005?
- CPC C12P41/005 is the Cooperative Patent Classification code for “by esterification of carboxylic acid groups in the enantiomers or the inverse reaction.”
- How many patents are filed under CPC C12P41/005 (by esterification of carboxylic acid groups in the enantiomers or the inverse reaction)?
- Our database includes 46 publications tagged with this CPC code.
- Is patent activity under CPC C12P41/005 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).