C08J 2339/06
Homopolymers or copolymers of n-vinyl-pyrrolidones
Official title: Homopolymers or copolymers of N-vinyl-pyrrolidones
C08J2339/06 (Homopolymers or copolymers of n-vinyl-pyrrolidones) appears on 92 US grants and 110 published applications in this corpus.
Search patents in C08J- Granted patents
- 92
- Published applications
- 110
- Assignees
- 103
- Inventors
- 324
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 3 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 3 |
| 2009 | 0 | 0 |
| 2010 | 1 | 4 |
| 2011 | 0 | 3 |
| 2012 | 2 | 4 |
| 2013 | 2 | 4 |
| 2014 | 3 | 3 |
| 2015 | 3 | 4 |
| 2016 | 6 | 8 |
| 2017 | 5 | 3 |
| 2018 | 4 | 5 |
| 2019 | 5 | 13 |
| 2020 | 4 | 9 |
| 2021 | 7 | 8 |
| 2022 | 5 | 9 |
| 2023 | 5 | 7 |
| 2024 | 4 | 2 |
| 2025 | 6 | 7 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Occult blood detection film, and preparation method therefor and use thereof and occult blood detection kit6 Oct 2026US 12,754,190 B2Ankon Medical Technologies (Shanghai) Co., LTD.
- Particles consisting of an organic polymer core, a first inorganic oxide shell incorporating a magnetic material and a mesoporous second inorganic shell1 Sep 2026US 12,723,140 B2Bundesrepublik Deutschland, vertreten durch den Bundesminister für Wirtschaft und Energie, dieser vertreten durch den Präsidenten der Bundesanstalt für Materialforschung und -prüfung, (BAM)
- Polymer compositions21 Jul 2026US 12,686,749 B2Oxford Medical Products Limited
- Conductive gel compositions and methods of production and use thereof14 Jul 2026US 12,678,615 B2Novocure GmbH
- Conductive gel compositions and methods of production and use thereof17 Mar 2026US 12,576,265 B2Novocure GmbH
- Hydrogel composition and hydrogel lens6 Aug 2026US 2026/0224478 A1Pegavision Corporation
- Carbon nanotube dispersion and preparation method therefor6 Aug 2026US 2026/0225891 A1LG Chem.Ltd.
- Liquid plastisol compositions and water soluble plasticized articles prepared therefrom30 Jul 2026US 2026/0217921 A1Avient Corporation
- Interactive graphene polymer30 Jul 2026US 2026/0217922 A1MITO Material Solutions, Inc.
- Ophthalmic devices14 May 2026US 2026/0132232 A1Bausch + Lomb Ireland Limited
Most cited
By later US patents
- Lubricious hydrophilic coating, resistant to wet abrasion129US 5,331,027 ASterilization Technical Services, Inc. · 1994
- Crosslinked PVP-I2 foam product117US 5,672,634 AISP Investments Inc. · 1997
- Lubricious hydrophilic composite coated on substrates107US 5,001,009 ASterilization Technical Services, Inc. · 1991
- Cold water soluble films and film forming compositions76US 5,272,191 AFMC Corporation · 1993
- Colored hydrogel objects and their production-containing a water-insoluble opaquing agent58US 4,981,487 AIgel International Ltd. · 1991