Photoinitiators for light-curable compositions
US-11518823-B2 · Dec 6, 2022 · 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 | C08F22/22 |
| Official title | Esters containing nitrogen |
| Display label | Esters containing nitrogen |
| Total patents | 88 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 11 |
| 2018 | 10 |
| 2019 | 5 |
| 2020 | 12 |
| 2021 | 7 |
| 2022 | 14 |
| 2023 | 7 |
| 2024 | 9 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Monofunctional or multifunctional urethane acrylate oligomers without isocyanates
US-11396491-B2 · Jul 26, 2022 · US
Thermal amplification of free radical polymerization induced by red to near-infrared irradiation
US-11384167-B2 · Jul 12, 2022 · US
Compound, curable composition, cured product, optical member, and lens
US-11370744-B2 · Jun 28, 2022 · US
Multilayer phase difference plate, polarizing plate, and image display device
US-2022177419-A1 · Jun 9, 2022 · US
Dental mill blank
US-2022142754-A1 · May 12, 2022 · US
Optical element, optical apparatus, imaging apparatus, and compound
US-2022137261-A1 · May 5, 2022 · US
Cell adhesion sheet
US-2021332180-A1 · Oct 28, 2021 · US
Electrochromic element
US-2021301197-A1 · Sep 30, 2021 · US
Polymerizable compound, polymerizable composition, polymer, optically anisotropic body, and method for producing polymerizable compound
US-11091452-B2 · Aug 17, 2021 · US
Conductive paste
US-11021626-B2 · Jun 1, 2021 · US
Chloride-free cationic polymers using acetate anions
US-2021147596-A1 · May 20, 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
Photocurable compositions for stereolithography, method of forming the compositions, stereolithography methods using the compositions, polymer components formed by the stereolithography methods, and a device including the poymer components
US-2020377628-A1 · Dec 3, 2020 · US
Conductive paste
US-2020377749-A1 · Dec 3, 2020 · US
Thermal amplification of free radical polymerization induced by red to near-infrared irradiation
US-2020362061-A1 · Nov 19, 2020 · US
Enrichment of lysophosphatidic acids with templated polymeric materials
US-10773238-B2 · Sep 15, 2020 · US
Photoinitiators for light-curable compositions
US-2020231531-A1 · Jul 23, 2020 · US
Compound, curable composition, cured product, optical member, and lens
US-2020181061-A1 · Jun 11, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F22/22?
- CPC C08F22/22 is the Cooperative Patent Classification code for “Esters containing nitrogen.”
- How many patents are filed under CPC C08F22/22 (Esters containing nitrogen)?
- Our database includes 88 publications tagged with this CPC code.
- Is patent activity under CPC C08F22/22 growing?
- Publication counts under this code: 9 in 2024 vs 4 in 2025 (latest complete years).