Closed-loop thermoset polymers with improved processibility and tunable degradation
US-2025171578-A1 · May 29, 2025 · US
Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with amino phenols C09D161/04)
Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with amino phenols C09D161/04) · 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 | C09D161/20 |
| Official title | Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with amino phenols C09D161/04) |
| Display label | Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with amino phenols C09D161/04) |
| Total patents | 41 |
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 | 4 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 9 |
| 2021 | 1 |
| 2022 | 6 |
| 2023 | 4 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Closed-loop thermoset polymers with improved processibility and tunable degradation
US-12240935-B1 · Mar 4, 2025 · US
Closed-loop thermoset polymers with improved processibility and tunable degradation
US-2025051506-A1 · Feb 13, 2025 · US
Aqueous dispersion of resin particles
US-12195631-B2 · Jan 14, 2025 · US
Controlled cure for compositions comprising acetoacetylated resins
US-11820923-B2 · Nov 21, 2023 · US
Laser-releasable bonding materials for 3-d ic applications
US-2023187257-A1 · Jun 15, 2023 · US
Laser-releasable bonding materials for 3-D IC applications
US-11610801-B2 · Mar 21, 2023 · US
Carbohydrate-based adhesives
US-2023082241-A1 · Mar 16, 2023 · US
Curable compositions comprising acetoacetylated resins, aldehydes and certain amines
US-11530342-B2 · Dec 20, 2022 · US
Curable acetoacetylated resin compositions and additives comprising adhesion promoters, green strength enhancers, or combinations thereof
US-11459493-B2 · Oct 4, 2022 · US
Curable acetoacetylated resin compositions comprising aldehydes and certain basic catalysts
US-11447670-B2 · Sep 20, 2022 · US
Assembly components comprising curable compositions containing acetoacetylated resins
US-11434400-B2 · Sep 6, 2022 · US
Flexible substrates comprising curable compositions containing acetoacetylated resins
US-11261359-B2 · Mar 1, 2022 · US
Aqueous dispersion of resin particles
US-2022049116-A1 · Feb 17, 2022 · US
Resist underlayer film-forming composition
US-2021271169-A1 · Sep 2, 2021 · US
2-mercaptobenzothiazole modified graphene oxide anti-corrosion coating and method for preparation thereof
US-10843926-B2 · Nov 24, 2020 · US
Laser-releasable bonding materials for 3-d ic applications
US-2020234993-A1 · Jul 23, 2020 · US
Curable acetoacetylated resin compositions and additives comprising adhesion promoters, green strength enhancers, or combinations thereof
US-2020181311-A1 · Jun 11, 2020 · US
Curable compositions comprising acetoacetylated resins, aldehydes and certain amines
US-2020181395-A1 · Jun 11, 2020 · US
Assembly components comprising curable compositions containing acetoacetylated resins
US-2020181312-A1 · Jun 11, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09D161/20?
- CPC C09D161/20 is the Cooperative Patent Classification code for “Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with amino phenols C09D161/04).”
- How many patents are filed under CPC C09D161/20 (Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen (with amino phenols C09D161/04))?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC C09D161/20 growing?
- Publication counts under this code: 4 in 2023 vs 4 in 2025 (latest complete years).