Resist composition, method for forming resist pattern, compound, and polymer compound
US-2026086458-A1 · Mar 26, 2026 · US
Carbamic acids; Salts of carbamic acids (unsubstituted carbamic acid or salts thereof C01B21/12)
Carbamic acids; Salts of carbamic acids (unsubstituted carbamic acid or salts thereof C01B21/12) · 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 | C07C271/02 |
| Official title | Carbamic acids; Salts of carbamic acids (unsubstituted carbamic acid or salts thereof C01B21/12) |
| Display label | Carbamic acids; Salts of carbamic acids (unsubstituted carbamic acid or salts thereof C01B21/12) |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 7 |
| 2017 | 7 |
| 2018 | 2 |
| 2019 | 5 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods of treating locally advanced or metastatic breast cancers using pd-1 axis binding antagonists and taxanes
US-2025295764-A1 · Sep 25, 2025 · US
Treatment of cataplexy
US-2025059135-A1 · Feb 20, 2025 · US
Treatment of cataplexy
US-12162821-B2 · Dec 10, 2024 · US
Method for manufacturing semiconductor substrate and composition
US-2024021429-A1 · Jan 18, 2024 · US
Compounds for treating segmental progeroid syndromes
US-2024010610-A1 · Jan 11, 2024 · US
Treatment of cataplexy
US-2023416195-A1 · Dec 28, 2023 · US
Treatment of cataplexy
US-11713292-B2 · Aug 1, 2023 · US
Inhibitors of histone lysine specific demethylase (LSD1) and histone deacetylases (HDACS)
US-11565994-B2 · Jan 31, 2023 · US
Methods of treating locally advanced or metastatic breast cancers using pd-1 axis binding antagonists and taxanes
US-2022133886-A1 · May 5, 2022 · US
Organic amine salt compounds having CO2-donating anions and their use as foaming agent
US-11261153-B2 · Mar 1, 2022 · US
Treatment of cataplexy
US-2022017457-A1 · Jan 20, 2022 · US
Methods of treating locally advanced or metastatic breast cancers using PD-1 axis binding antagonists and taxanes
US-11154616-B2 · Oct 26, 2021 · US
Treatment of cataplexy
US-11072579-B2 · Jul 27, 2021 · US
Inhibitors of histone lysine specific demethylase (lsd1) and histone deacetylases (hdacs)
US-2021009511-A1 · Jan 14, 2021 · US
Amino acids react with carbon dioxide (CO2) and form nanofibers and nanoflowers
US-10583388-B2 · Mar 10, 2020 · US
Carbon dioxide chemical sensor having amino acid-based compound and carbon dioxide detection method using the same
US-10422779-B2 · Sep 24, 2019 · US
Treatment of cataplexy
US-2019218174-A1 · Jul 18, 2019 · US
Systems and methods for forming a solution of ammonium carbamate
US-10315986-B1 · Jun 11, 2019 · US
Treatment of cataplexy
US-10259780-B2 · Apr 16, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C271/02?
- CPC C07C271/02 is the Cooperative Patent Classification code for “Carbamic acids; Salts of carbamic acids (unsubstituted carbamic acid or salts thereof C01B21/12).”
- How many patents are filed under CPC C07C271/02 (Carbamic acids; Salts of carbamic acids (unsubstituted carbamic acid or salts thereof C01B21/12))?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC C07C271/02 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).