Dye-labeled polymers and methods for preparing same
US-2024327655-A1 · Oct 3, 2024 · US
Polyamines
Polyamines · 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 | C09D179/02 |
| Official title | Polyamines |
| Display label | Polyamines |
| Total patents | 595 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 54 |
| 2016 | 45 |
| 2017 | 63 |
| 2018 | 68 |
| 2019 | 47 |
| 2020 | 68 |
| 2021 | 60 |
| 2022 | 52 |
| 2023 | 51 |
| 2024 | 50 |
| 2025 | 31 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polyanilines and methods thereof
US-11970577-B2 · Apr 30, 2024 · US
Systems, compositions, and methods for enhanced electromagnetic shielding and corrosion resistance
US-11965116-B2 · Apr 23, 2024 · US
Swellable pre-treatment coating
US-9505938-B2 · Nov 29, 2016 · US
Charge-transporting varnish
US-2016248017-A1 · Aug 25, 2016 · US
Novolac resin-containing resist underlayer film-forming composition using bisphenol aldehyde
US-2016068709-A1 · Mar 10, 2016 · US
Barrier film, methods of manufacture thereof and articles comprising the same
US-2015376449-A1 · Dec 31, 2015 · US
Barrier film, methods of manufacture thereof and articles comprising the same
US-2015376450-A1 · Dec 31, 2015 · US
Amine Composition
US-2015368531-A1 · Dec 24, 2015 · US
Sulfur scavenging materials for filters and coatings
US-2015360173-A1 · Dec 17, 2015 · US
Actinic-radiation-curable resin composition, primer containing the same, and shaped article
US-2015361298-A1 · Dec 17, 2015 · US
Preparation of poly(octatriazacane)
US-2015361221-A1 · Dec 17, 2015 · US
Preparation of poly(octatriazacane)
US-2015361220-A1 · Dec 17, 2015 · US
Conjugated polymer, insolubilized polymer, organic electroluminescence element material, composition for organic electroluminescence element, polymer production process, organic electroluminescence element, organic EL display and organic EL lighting
US-9214633-B2 · Dec 15, 2015 · US
Porous nanocomposite polymers for water treatment
US-2015353381-A1 · Dec 10, 2015 · US
Sulfur scavenging materials for filters and coatings
US-2015343352-A1 · Dec 3, 2015 · US
Swellable pre-treatment coating
US-2015344708-A1 · Dec 3, 2015 · US
Conductive polymer composite and substrate
US-2015340118-A1 · Nov 26, 2015 · US
Conductive polymer composition
US-2015340119-A1 · Nov 26, 2015 · US
Poly(beta-amino alcohols), their preparation, and uses thereof
US-9193827-B2 · Nov 24, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09D179/02?
- CPC C09D179/02 is the Cooperative Patent Classification code for “Polyamines.”
- How many patents are filed under CPC C09D179/02 (Polyamines)?
- Our database includes 595 publications tagged with this CPC code.
- Is patent activity under CPC C09D179/02 growing?
- Publication counts under this code: 50 in 2024 vs 31 in 2025 (latest complete years).