B32B 2331/04
Polymers of vinyl acetate
Official title: Polymers of vinyl acetate, e.g. PVA
B32B2331/04 (Polymers of vinyl acetate) appears on 362 US grants and 241 published applications in this corpus.
Search patents in B32B- Granted patents
- 362
- Published applications
- 241
- Assignees
- 222
- Inventors
- 826
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 10 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 18 | 0 |
| 1989 | 21 | 0 |
| 1990 | 14 | 0 |
| 1991 | 9 | 0 |
| 1992 | 11 | 0 |
| 1993 | 4 | 0 |
| 1994 | 12 | 0 |
| 1995 | 12 | 0 |
| 1996 | 17 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 14 | 1 |
| 2002 | 5 | 9 |
| 2003 | 13 | 8 |
| 2004 | 10 | 15 |
| 2005 | 5 | 15 |
| 2006 | 4 | 8 |
| 2007 | 4 | 6 |
| 2008 | 4 | 5 |
| 2009 | 2 | 4 |
| 2010 | 6 | 7 |
| 2011 | 8 | 5 |
| 2012 | 4 | 6 |
| 2013 | 2 | 2 |
| 2014 | 0 | 4 |
| 2015 | 6 | 18 |
| 2016 | 5 | 10 |
| 2017 | 6 | 12 |
| 2018 | 6 | 12 |
| 2019 | 12 | 14 |
| 2020 | 10 | 22 |
| 2021 | 11 | 14 |
| 2022 | 9 | 7 |
| 2023 | 6 | 15 |
| 2024 | 7 | 10 |
| 2025 | 11 | 6 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Recovered plastic cards7 Apr 2026US 12,596,904 B2CPI Card Group—Colorado, Inc.
- Delamination of used solar module17 Mar 2026US 12,576,631 B1SOLARCYCLE, Inc.
- Functional fabric obtained by recycling separator for secondary battery, and method for manufacturing same3 Mar 2026US 12,565,029 B2RightRoute Co. Ltd.
- Shoe upper27 Jan 2026US D1,109,999 S1Under Armour, Inc. · Design
- Maintaining suitable sealability and hot tack strengths of acrylic- and acetate-based coatings when using base films containing HCR to improve their water-vapor barriers13 Jan 2026US 12,521,969 B2JFE Innovation Center SRL
- Flame-retardant metal-resin composite material3 Sep 2026US 2026/0258204 A1Mitsubishi Chemical Infratec Co., Ltd.
- Thermally-Sublimable Glitter Film Material13 Aug 2026US 2026/0233501 A1Chance Line Industrial Co., Ltd.
- Delamination of used solar module16 Jul 2026US 2026/0200225 A1SOLARCYCLE, Inc.
- Multilayer film and method of preparation thereof2 Jul 2026US 2026/0184053 A1Cosmo First Limited
- Mass transfer film and method for manufacturing the same2 Jul 2026US 2026/0184054 A1San Fang Chemical Industry Co., Ltd.
Most cited
By later US patents
- Getter system for vacuum insulation panel197US 5,505,810 AWhirlpool Corporation · 1996
- Nonwoven laminate with cross directional stretch139US 5,540,976 AKimberly-Clark Corporation · 1996
- Getter system for vacuum insulation panel127US 5,532,034 AWhirlpool Corporation · 1996
- Backside covering member for solar battery, sealing film and solar battery125US 6,407,329 B1Bridgestone Corporation · 2002
- Flexible magnet attractant display mat121US 5,503,891 AMarflex International Inc. · 1996