Preparation of n-vinylpyrrolidone polymers, containing less than 0.5 wt% of 2-pyrrolidone
US-2025304728-A1 · Oct 2, 2025 · US
N-Vinyl-pyrrolidone
N-Vinyl-pyrrolidone · 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 | C08F126/10 |
| Official title | N-Vinyl-pyrrolidone |
| Display label | N-Vinyl-pyrrolidone |
| Total patents | 66 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 8 |
| 2022 | 8 |
| 2023 | 10 |
| 2024 | 6 |
| 2025 | 9 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Conductive composition and production method therefor, and water-soluble polymer and production method therefor
US-2025304801-A1 · Oct 2, 2025 · US
Water-based binder solutions for use in additive manufacturing processes
US-12398261-B2 · Aug 26, 2025 · US
Cleaning liquid for excessive powder removal, method for producing three-dimensional molded object, and set of object molding liquid and cleaning liquid
US-12391903-B2 · Aug 19, 2025 · US
Chiral-substituted poly-N-vinylpyrrolidinones and complexes with bimetallic nanoclusters and uses thereof in asymmetric oxidation reactions
US-12240810-B2 · Mar 4, 2025 · US
Preparing method for polymer, composition for radical polymerization and control agent for radical polymerization
US-2024425625-A1 · Dec 26, 2024 · US
Preparing method for polymer, composition for radical polymerization and control agent for radical polymerization
US-12134665-B2 · Nov 5, 2024 · US
Sequential infiltration synthesis of group 13 oxide electronic materials
US-12104249-B2 · Oct 1, 2024 · US
Multifunctional nitroxide-mediated polymerization initiators and multi-armed polymers and hydrogels formed therefrom
US-2024117121-A1 · Apr 11, 2024 · US
Amide-functionalized polymerization initiators and their use in the manufacture of ophthalmic lenses
US-11912800-B2 · Feb 27, 2024 · US
Water-based binder solutions for use in additive manufacturing processes
US-2024034902-A1 · Feb 1, 2024 · US
Multifunctional nitroxide-mediated polymerization initiators and multi-armed polymers and hydrogels formed therefrom
US-11820868-B2 · Nov 21, 2023 · US
Cleaning liquid for excessive powder removal, method for producing three-dimensional molded object, and set of object molding liquid and cleaning liquid
US-2023287311-A1 · Sep 14, 2023 · US
Water-based binder solutions for use in additive manufacturing processes
US-2023250272-A1 · Aug 10, 2023 · US
Water-based binders and methods of use in additive manufacture of parts
US-11667078-B2 · Jun 6, 2023 · US
Water-based binder solutions for use in additive manufacturing processes
US-11643542-B2 · May 9, 2023 · US
Conductive composition and production method therefor, and water-soluble polymer and production method therefor
US-2023135022-A1 · May 4, 2023 · US
Amide-functionalized polymerization initiators and their use in the manufacture of ophthalmic lenses
US-2023105992-A1 · Apr 6, 2023 · US
Ophthalmic devices
US-2023096315-A1 · Mar 30, 2023 · US
Binders comprising a monomer and an initiator for use in additive manufacturing
US-2023082562-A1 · Mar 16, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F126/10?
- CPC C08F126/10 is the Cooperative Patent Classification code for “N-Vinyl-pyrrolidone.”
- How many patents are filed under CPC C08F126/10 (N-Vinyl-pyrrolidone)?
- Our database includes 66 publications tagged with this CPC code.
- Is patent activity under CPC C08F126/10 growing?
- Publication counts under this code: 6 in 2024 vs 9 in 2025 (latest complete years).