C08F 226/08
N-vinyl-pyrrolidine
Official title: N-Vinyl-pyrrolidine
C08F226/08 (N-vinyl-pyrrolidine) appears on 39 US grants and 55 published applications in this corpus.
Search patents in C08F- Granted patents
- 39
- Published applications
- 55
- Assignees
- 35
- Inventors
- 133
- Latest grant
- 11 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 4 |
| 2012 | 0 | 2 |
| 2013 | 3 | 5 |
| 2014 | 1 | 3 |
| 2015 | 4 | 3 |
| 2016 | 5 | 6 |
| 2017 | 2 | 3 |
| 2018 | 2 | 1 |
| 2019 | 3 | 4 |
| 2020 | 5 | 7 |
| 2021 | 4 | 3 |
| 2022 | 2 | 2 |
| 2023 | 1 | 0 |
| 2024 | 2 | 3 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Graft polymers, methods for preparing same, and uses thereof particularly for metal capture11 Feb 2025US 12,221,504 B2Conseil National De La Recherche
- Carbon material dispersion19 Nov 2024US 12,146,045 B2Dainichiseika Color & Chemicals Mfg. Co., Ltd.
- Dental materials using thermoset polymers9 Jul 2024US 12,029,623 B2Align Technology, Inc.
- Acryloyl based polymers with active end cap as corrosion inhibitors12 Sep 2023US 11,753,492 B2Saudi Arabian Oil Company
- Method of using hydrophilized bactericidal polymers4 Oct 2022US 11,459,415 B2Purdue Research Foundation
- Active energy ray-curable composition and cured product thereof13 Aug 2026US 2026/0234306 A1Sanyo Chemical Industries, Ltd.
- Copolymer composition for separator and secondary battery containing same12 Jun 2025US 2025/0188306 A1Hansol Chemical Co., Ltd.
- Dental materials using thermoset polymers26 Sep 2024US 2024/0315804 A1Align Technology, Inc.
- Monofunctional silicone monomers and silicone hydrogels formed therefrom26 Sep 2024US 2024/0317988 A1Bausch + Lomb Ireland Limited
- Carbon material dispersion13 Jun 2024US 2024/0191054 A1Dainichiseika Color & Chemicals Mfg. Co., Ltd.
Most cited
By later US patents
- Dental materials using thermoset polymers125US 10,492,888 B2Align Technology, Inc. · 2019
- Mono ethylenically unsaturated polymerizable group containing polycarbosiloxane monomers116US 8,420,711 B2Bausch & Lomb Incorporated · 2013
- Polymeric acid catalysts and uses thereof33US 8,466,242 B2Midori Renewables, Inc. · 2013
- Polymeric acid catalysts and uses thereof21US 8,476,388 B2Midori Renewables, Inc. · 2013
- Polymeric acid catalysts and uses thereof21US 9,079,171 B2Midori USA, Inc. · 2015