C08J 2439/06
Homopolymers or copolymers of n-vinyl-pyrrolidones
Official title: Homopolymers or copolymers of N-vinyl-pyrrolidones
C08J2439/06 (Homopolymers or copolymers of n-vinyl-pyrrolidones) appears on 75 US grants and 121 published applications in this corpus.
Search patents in C08J- Granted patents
- 75
- Published applications
- 121
- Assignees
- 96
- Inventors
- 315
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 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 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 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 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 2 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 4 |
| 2017 | 1 | 6 |
| 2018 | 2 | 9 |
| 2019 | 2 | 14 |
| 2020 | 6 | 19 |
| 2021 | 14 | 7 |
| 2022 | 7 | 13 |
| 2023 | 11 | 10 |
| 2024 | 10 | 17 |
| 2025 | 7 | 7 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Solvent-based oxygen barrier coating composition1 Sep 2026US 12,723,161 B2Siegwerk Druckfarben AG & Co. KGaA
- Process for preparing coated shaped bodies and their use28 Jul 2026US 12,692,357 B2BASF SE
- Polymer compositions21 Jul 2026US 12,686,749 B2Oxford Medical Products Limited
- Porous membranes for high pressure filtration7 Jul 2026US 12,673,303 B2Syensqo Specialty Polymers USA, LLC
- Soft matte non-silicone film27 Jan 2026US 12,533,870 B2Toray Plastics (America), Inc.
- Liquid plastisol compositions and water soluble plasticized articles prepared therefrom30 Jul 2026US 2026/0217921 A1Avient Corporation
- Biocompatible porous materials and methods of manufacture and use16 Jul 2026US 2026/0201138 A1
- Chromium acid etching free metal plating of blends of acrylonitrile-butadiene-styrene and polar polymer16 Jul 2026US 2026/0201157 A1Sabic Global Technologies B.V.
- Silicone Hydrogel Mixture and Wettable Silicone Hydrogel Lens Formed Thereof18 Jun 2026US 2026/0167780 A1Lucens Technology Inc.
- Silicone hydrogels formed from monofunctional urea-based silicone monomers18 Jun 2026US 2026/0167781 A1
Most cited
By later US patents
- Coated substrate having a low coefficient of friction hydrophilic coating and a method of making the same201US 4,119,094 ABiosearch Medical Products Inc. · 1978
- Preparation of hydrophilic coating83US 4,585,666 AAstra Meditec AB · 1986
- Hydrophilic coating74US 4,666,437 AAstra Meditec Aktiebolag · 1987
- Process for coating polymer surfaces and coated products produced using such process57US 4,943,460 ASnyder Laboratories, Inc. · 1990
- Process for the preparation of polymer particles43US 6,127,439 ANOVA Chemicals (International) S.A. · 2000