C08F 26/10
N-vinyl-pyrrolidone
Official title: N-Vinyl-pyrrolidone
C08F26/10 (N-vinyl-pyrrolidone) appears on 70 US grants and 70 published applications in this corpus.
Search patents in C08F- Granted patents
- 70
- Published applications
- 70
- Assignees
- 46
- Inventors
- 227
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 5 | 5 |
| 2003 | 5 | 2 |
| 2004 | 1 | 0 |
| 2005 | 2 | 3 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 3 |
| 2014 | 1 | 1 |
| 2015 | 1 | 7 |
| 2016 | 2 | 2 |
| 2017 | 4 | 4 |
| 2018 | 3 | 10 |
| 2019 | 6 | 6 |
| 2020 | 5 | 3 |
| 2021 | 4 | 2 |
| 2022 | 2 | 2 |
| 2023 | 3 | 4 |
| 2024 | 1 | 1 |
| 2025 | 2 | 3 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dispersions containing graphenic carbon nanoparticles and dispersant resins28 Jul 2026US 12,692,162 B2PPG Industries Ohio, Inc.
- Lyophilized composition comprising (s)-isopropyl 2-((s)-2-acetamido-3-(1H-indol-3-yl)propanamido)-6-diazo-5-oxohexanoate for intravenous administration and the use thereof26 May 2026US 12,637,415 B2Dracen Pharmaceuticals, Inc.
- Resin emulsion for water-based ink23 Dec 2025US 12,503,614 B2Nippon Shokubai Co., Ltd.
- Conductive composition and production method therefor, and water-soluble polymer and production method therefor5 Aug 2025US 12,378,422 B2Mitsubishi Chemical Corporation
- Dispersions containing graphenic carbon nanoparticles and dispersant resins10 Sep 2024US 12,084,349 B2PPG Industries Ohio, Inc.
- Dispersions containing graphenic carbon nanoparticles and dispersant resins1 Oct 2026US 2026/0296894 A1PPG Industries Ohio, Inc.
- Coated device and method for manufacturing same6 Aug 2026US 2026/0226285 A1Toray Industries, Inc.
- Water soluble composition, method for producing same, conductive composition, and method for producing same9 Apr 2026US 2026/0098127 A1Mitsubishi Chemical Corporation
- Reactive gel material for sustained water-based reactions19 Feb 2026US 2026/0049219 A1Everbond Interface Technologies, Inc.
- Preparation of n-vinylpyrrolidone polymers, containing less than 0.5 wt% of 2-pyrrolidone2 Oct 2025US 2025/0304728 A1BASF SE
Most cited
By later US patents
- Rheology modifier for use in aqueous compositions57US 6,458,888 B1ISP Investments Inc. · 2002
- Polymerizable polydimethylsiloxane-polyoxyalkylene block copolymers30US 10,465,047 B2Novartis AG · 2019
- N-vinyllactam derivatives and polymer thereof24US 5,750,680 AHyundai Electronics Industries Co., Ltd. · 1998
- Manufacture of vinylpyrrolidone polymers20US 4,053,696 ABASF SE · 1977
- Preparation of vinylpyrrolidone/vinyl acetate copolymers of various molecular weights using a single initiator system consisting essentially of t-Butylperoxypivalate17US 4,520,179 AGAF Corporation · 1985