Gas-barrier coating composition and gas-barrier laminate
US-12577411-B2 · Mar 17, 2026 · US
Homopolymers or copolymers of vinylamine
Homopolymers or copolymers of vinylamine · 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 | C09D139/02 |
| Official title | Homopolymers or copolymers of vinylamine |
| Display label | Homopolymers or copolymers of vinylamine |
| Total patents | 57 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 7 |
| 2019 | 1 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 9 |
| 2023 | 10 |
| 2024 | 6 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Two-component treatment agent, treatment method for making metal surface antibacterial and antibacterial treatment agent
US-12570860-B2 · Mar 10, 2026 · US
Composition for aqueous coating liquid
US-12486423-B2 · Dec 2, 2025 · US
Fluid set for inkjet printing
US-12421406-B2 · Sep 23, 2025 · US
Method of Producing a Metal Material Comprising a Film
US-2025257225-A1 · Aug 14, 2025 · US
Binder including copolymer composition, anode for secondary battery including same binder, and secondary battery including same anode
US-2025192179-A1 · Jun 12, 2025 · US
Poly(methyl-diallyl ammonium chloride) decorated with cationic hydrophobic pendant as an acidizing corrosion inhibitor and method of preparation thereof
US-2025084310-A1 · Mar 13, 2025 · US
Methods, compositions, and apparatuses for superhydrophobic polymer coatings and superamphiphobic coatings of metal surfaces
US-2024270980-A1 · Aug 15, 2024 · US
Method for the hydrolysis of a polymer
US-12018113-B2 · Jun 25, 2024 · US
Display panel and manufacturing method thereof
US-11991912-B2 · May 21, 2024 · US
High purity allylamine (co)polymer and method for producing same
US-2024117082-A1 · Apr 11, 2024 · US
Mesoporous carbon based nanocontainer coatings for corrosion protection of metal structures
US-2024093037-A1 · Mar 21, 2024 · US
Formaldehyde-scavenging formulation
US-2024002683-A1 · Jan 4, 2024 · US
Inkjet-printed articles
US-2023406021-A1 · Dec 21, 2023 · US
Inkjet printed articles and method of making
US-11813882-B2 · Nov 14, 2023 · US
Method for producing paper or cardboard
US-11795255-B2 · Oct 24, 2023 · US
Cross-linkable nanocomposite anticorrosion coating
US-11685836-B2 · Jun 27, 2023 · US
Fluid Set for Inkjet Printing
US-2023167319-A1 · Jun 1, 2023 · US
Conductive polymer composition, coated product, and patterning process
US-2023168584-A1 · Jun 1, 2023 · US
Coating fluid
US-11655390-B2 · May 23, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09D139/02?
- CPC C09D139/02 is the Cooperative Patent Classification code for “Homopolymers or copolymers of vinylamine.”
- How many patents are filed under CPC C09D139/02 (Homopolymers or copolymers of vinylamine)?
- Our database includes 57 publications tagged with this CPC code.
- Is patent activity under CPC C09D139/02 growing?
- Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).