Method for producing pyrrole derivative, and intermediate thereof
US-2017369438-A1 · Dec 28, 2017 · US
Separation of optically-active compounds
Separation of optically-active compounds · 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 | C07B57/00 |
| Official title | Separation of optically-active compounds |
| Display label | Separation of optically-active compounds |
| Total patents | 186 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 15 |
| 2017 | 33 |
| 2018 | 23 |
| 2019 | 21 |
| 2020 | 26 |
| 2021 | 14 |
| 2022 | 9 |
| 2023 | 6 |
| 2024 | 6 |
| 2025 | 15 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Intermediates for preparing triazole agonists of the APJ receptor
US-9845310-B2 · Dec 19, 2017 · US
Synthetic route to 2′-deoxy-2′,2′-difluorotetrahydrouridines
US-9834576-B2 · Dec 5, 2017 · US
Chiral resolution method of n-[4-(1-aminoethyl)-phenyl]-sulfonamide derivatives
US-2017342027-A1 · Nov 30, 2017 · US
Stereodynamic chemosensors
US-9815746-B2 · Nov 14, 2017 · US
Self-limiting treatment compositions containing water-soluble polyelectrolyte complex
US-9809790-B2 · Nov 7, 2017 · US
Methods of treating heart failure
US-2017281625-A1 · Oct 5, 2017 · US
Method for producing 2-pyridone compound
US-2017267659-A1 · Sep 21, 2017 · US
Method for producing pyrrole derivative, and intermediate thereof
US-9765025-B2 · Sep 19, 2017 · US
Method for producing (R)-1,1,3-trimethyl-4-aminoindane
US-9765032-B2 · Sep 19, 2017 · US
Enantioselective destruction of chiral molecules
US-2017253538-A1 · Sep 7, 2017 · US
Methods for preparing triazole agonists of the APJ receptor
US-9751864-B2 · Sep 5, 2017 · US
PROCESS FOR PREPARING (CYCLOPENTYL[d]PYRIMIDIN-4-YL)PIPERAZINE COMPOUNDS
US-2017247338-A1 · Aug 31, 2017 · US
Triazole agonists of the APJ receptor
US-9745286-B2 · Aug 29, 2017 · US
Stereochemically defined polypropionates and methods for making and using the same
US-2017240560-A1 · Aug 24, 2017 · US
Method for chiral resolution and device therefor
US-2017226027-A1 · Aug 10, 2017 · US
Method for improving optical purity of 2-hydroxycarboxylic acid or derivative thereof
US-9682913-B2 · Jun 20, 2017 · US
Method for producing (r)-1,1,3-trimethyl-4-aminoindane
US-2017166532-A1 · Jun 15, 2017 · US
Intermediates for preparing triazole agonists of the APJ receptor
US-9656998-B2 · May 23, 2017 · US
Triazole agonists of the APJ receptor
US-9656997-B2 · May 23, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07B57/00?
- CPC C07B57/00 is the Cooperative Patent Classification code for “Separation of optically-active compounds.”
- How many patents are filed under CPC C07B57/00 (Separation of optically-active compounds)?
- Our database includes 186 publications tagged with this CPC code.
- Is patent activity under CPC C07B57/00 growing?
- Publication counts under this code: 6 in 2024 vs 15 in 2025 (latest complete years).