N-vinyl lactam-based crosslinked polymer, cosmetic, absorbent agent for ink, and absorbent composite
US-2019300629-A1 · Oct 3, 2019 · US
Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member · 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 | C08L39/04 |
| Official title | Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member |
| Display label | Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member |
| Total patents | 194 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 18 |
| 2017 | 9 |
| 2018 | 22 |
| 2019 | 25 |
| 2020 | 24 |
| 2021 | 20 |
| 2022 | 19 |
| 2023 | 14 |
| 2024 | 14 |
| 2025 | 13 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Use of a composition for bleaching teeth
US-10154953-B2 · Dec 18, 2018 · US
Process for making an antimicrobial composition
US-2018347107-A1 · Dec 6, 2018 · US
Lactamic polymer containing an acetoacetate moiety
US-10118981-B2 · Nov 6, 2018 · US
Resin composition, substrate and cell culture process
US-2018298178-A1 · Oct 18, 2018 · US
Polymer containing 1,2,5-benzoselenadiazole-N-R1-5,6-dicarboxylic acid imide and preparation method and use thereof
US-10090423-B2 · Oct 2, 2018 · US
Additive formulation suitable for antistatic modification and improving the electrical conductivity of inanimate organic material
US-10062471-B2 · Aug 28, 2018 · US
X-ray detector
US-2018240848-A1 · Aug 23, 2018 · US
Formulations containing mixed resin systems and the use thereof for wafer-level underfill for 3d tsv packages
US-2018226313-A1 · Aug 9, 2018 · US
Polymer containing 1,2,5-benzoselenadiazole-n-r1-5,6-dicarboxylic acid imide and preparation method and use thereof
US-2018212074-A1 · Jul 26, 2018 · US
Resin composition, prepreg or resin sheet comprising the resin composition, and laminate and printed circuit board comprising them
US-2018177047-A1 · Jun 21, 2018 · US
Method for producing conductive film, conductive film, and touch panel
US-2018155568-A1 · Jun 7, 2018 · US
Use of a composition for bleaching teeth
US-2018125773-A1 · May 10, 2018 · US
Soft contact lenses with a lubricious coating covalently-attached thereon
US-2018113236-A1 · Apr 26, 2018 · US
Dispersant, metal particle dispersion for electroconductive substrates, and method for producing electroconductive substrate
US-9953740-B2 · Apr 24, 2018 · US
Temperature-responsive cell culture substrate and method for producing same
US-9951308-B2 · Apr 24, 2018 · US
Methods and compositions for clarifying produced waters for boiler feed waters
US-2018105442-A1 · Apr 19, 2018 · US
Polymers for stabilising peroxide compounds
US-2018093113-A1 · Apr 5, 2018 · US
Vehicle part cover including methacrylic-based resin
US-9920148-B2 · Mar 20, 2018 · US
Nanoheterostructure and method for producing the same
US-9914666-B2 · Mar 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08L39/04?
- CPC C08L39/04 is the Cooperative Patent Classification code for “Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member.”
- How many patents are filed under CPC C08L39/04 (Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member)?
- Our database includes 194 publications tagged with this CPC code.
- Is patent activity under CPC C08L39/04 growing?
- Publication counts under this code: 14 in 2024 vs 13 in 2025 (latest complete years).