Acryloyl based polymers with active end cap as corrosion inhibitors
US-11753492-B2 · Sep 12, 2023 · US
N-Vinyl-pyrrolidine
N-Vinyl-pyrrolidine · 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 | C08F226/08 |
| Official title | N-Vinyl-pyrrolidine |
| Display label | N-Vinyl-pyrrolidine |
| Total patents | 68 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 11 |
| 2017 | 5 |
| 2018 | 8 |
| 2019 | 5 |
| 2020 | 13 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of using hydrophilized bactericidal polymers
US-11459415-B2 · Oct 4, 2022 · US
Acryloyl based polymers with active end cap as corrosion inhibitors
US-2022275128-A1 · Sep 1, 2022 · US
Nucleic acid extraction materials, systems, and methods
US-11390864-B2 · Jul 19, 2022 · US
Compositions for high stabilization of emulsions
US-2022162350-A1 · May 26, 2022 · US
Method of using hydrophilized bactericidal polymers
US-11134684-B2 · Oct 5, 2021 · US
Dental materials using thermoset polymers
US-2021244503-A1 · Aug 12, 2021 · US
Acryloyl based polymers with active end cap as corrosion inhibitors
US-2021171687-A1 · Jun 10, 2021 · US
Method of using hydrophilized bactericidal polymers
US-2021084898-A1 · Mar 25, 2021 · US
Dental materials using thermoset polymers
US-10925692-B2 · Feb 23, 2021 · US
Dental materials using thermoset polymers
US-10925693-B2 · Feb 23, 2021 · US
Process for obtaining a cationic polymer with an at least bimodal molecular weight distribution
US-10920001-B2 · Feb 16, 2021 · US
Dental materials using thermoset polymers
US-2020397539-A1 · Dec 24, 2020 · US
Dental materials using thermoset polymers
US-2020397538-A1 · Dec 24, 2020 · US
Dental materials using thermoset polymers
US-10806547-B2 · Oct 20, 2020 · US
Nucleic acid extraction materials, systems, and methods
US-2020325467-A1 · Oct 15, 2020 · US
Dental materials using thermoset polymers
US-10772707-B2 · Sep 15, 2020 · US
A Core-Shell Nanoparticle
US-2020263025-A1 · Aug 20, 2020 · US
Hydroxyphenyl phenanthrolines as polymerizable blockers of high energy light
US-10723732-B2 · Jul 28, 2020 · US
Novel graft polymers, methods for preparing same, and uses thereof particularly for metal capture
US-2020231722-A1 · Jul 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F226/08?
- CPC C08F226/08 is the Cooperative Patent Classification code for “N-Vinyl-pyrrolidine.”
- How many patents are filed under CPC C08F226/08 (N-Vinyl-pyrrolidine)?
- Our database includes 68 publications tagged with this CPC code.
- Is patent activity under CPC C08F226/08 growing?
- Publication counts under this code: 5 in 2024 vs 3 in 2025 (latest complete years).