Method to prepare a precursor for a polymer or to prepare a polymer comprising at least one unit having a tertiary amine and a pendant carboxyl group and a precursor or polymer comprising such unit
US-12466915-B2 · Nov 11, 2025 · US
Esters containing nitrogen
Esters containing nitrogen · 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 | C08F122/22 |
| Official title | Esters containing nitrogen |
| Display label | Esters containing nitrogen |
| Total patents | 40 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 7 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 7 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Glass powder and chemical polymerization initiator
US-12460021-B2 · Nov 4, 2025 · US
Polymer glass transition temperature manipulation via z/e hydrazone photoswitching
US-12435166-B2 · Oct 7, 2025 · US
Curable composition, cured product, and compound
US-12139567-B2 · Nov 12, 2024 · US
Polymer glass transition temperature manipulation via z/e hydrazone photoswitching
US-2024287218-A1 · Aug 29, 2024 · US
Amino-reactive positively charged ATRP initiators that maintain their positive charge during synthesis of biomacro-initiators
US-12053529-B2 · Aug 6, 2024 · US
Imidazolium-based poly(ionic liquid)s and use therefore
US-2024247090-A1 · Jul 25, 2024 · US
Polymer glass transition temperature manipulation via z/e hydrazone photoswitching
US-11987654-B2 · May 21, 2024 · US
A method to prepare a precursor for a polymer or to prepare a polymer comprising at least one unit having a tertiary amine and a pendant carboxyl group and a precursor or polymer comprising such unit
US-2024101757-A1 · Mar 28, 2024 · US
Compound and composition
US-2024025909-A1 · Jan 25, 2024 · US
Polymer glass transition temperature manipulation via z/e hydrazone photoswitching
US-2023125498-A1 · Apr 27, 2023 · US
Polymer glass transition temperature manipulation via Z/E hydrazone photoswitching
US-11566089-B2 · Jan 31, 2023 · US
Glass powder and chemical polymerization initiator
US-2022332857-A1 · Oct 20, 2022 · US
Curable composition, cured product, and compound
US-2022177625-A1 · Jun 9, 2022 · US
Curable resin composition and cured product thereof
US-2022106420-A1 · Apr 7, 2022 · US
Amino-reactive positively charged atrp initiators that maintain their positive charge during synthesis of biomacro-initiators
US-2021316001-A1 · Oct 14, 2021 · US
Curable composition for dental use, and method for producing same
US-11058608-B2 · Jul 13, 2021 · US
Electrochromic compound, electrochromic composition, and electrochromic element
US-10975296-B2 · Apr 13, 2021 · US
Polymer glass transition temperature manipulation via z/e hydrazone photoswitching
US-2021079134-A1 · Mar 18, 2021 · US
Polymer having antimicrobial and/or antifouling properties
US-10889726-B2 · Jan 12, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F122/22?
- CPC C08F122/22 is the Cooperative Patent Classification code for “Esters containing nitrogen.”
- How many patents are filed under CPC C08F122/22 (Esters containing nitrogen)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC C08F122/22 growing?
- Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).