C08J 2429/04
Polyvinyl alcohol
Official title: Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
C08J2429/04 (Polyvinyl alcohol) appears on 296 US grants and 514 published applications in this corpus.
Search patents in C08J- Granted patents
- 296
- Published applications
- 514
- Assignees
- 276
- Inventors
- 1,313
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 5 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 4 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 0 | 3 |
| 2011 | 0 | 4 |
| 2012 | 1 | 9 |
| 2013 | 1 | 10 |
| 2014 | 3 | 20 |
| 2015 | 11 | 25 |
| 2016 | 17 | 36 |
| 2017 | 22 | 29 |
| 2018 | 14 | 29 |
| 2019 | 17 | 34 |
| 2020 | 21 | 39 |
| 2021 | 24 | 36 |
| 2022 | 25 | 47 |
| 2023 | 23 | 53 |
| 2024 | 36 | 46 |
| 2025 | 32 | 49 |
| 2026 | 26 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vinylidene fluoride polymer polymerization18 Aug 2026US 12,709,652 B2SYENSQO SPECIALTY POLYMERS ITALY S.p.A.
- Multi-material sheathing system with sustained thermal insulation performance11 Aug 2026US 12,703,778 B2Owens Corning Intellectual Capital, LLC
- Composition for forming colored layer, optical film, and display device11 Aug 2026US 12,703,799 B2Toppan Inc.
- Process for preparing layered foamed polymeric materials4 Aug 2026US 12,697,755 B2MATERIAS S.r.l.
- Barrier film and packaging material28 Jul 2026US 12,692,057 B2Dai Nippon Printing Co.Ltd.
- Color getters for color removal in solvent-based plastic recycling1 Oct 2026US 2026/0297281 A1Wisconsin Alumni Research Foundation
- Polar polymers as processing aids in polyethylene1 Oct 2026US 2026/0297309 A1NOVA Chemicals (International) S.A.
- Method for preparing a new water-soluble and biodegradable material3 Sep 2026US 2026/0258230 A1Ecoitaly Società A Responsabilità Limitata
- Resin composition20 Aug 2026US 2026/0242572 A1Plantic Technologies Ltd.
- Multilayer structure, method for producing the same, and protective sheet for electronic device and electronic device using the same30 Jul 2026US 2026/0216749 A1Kuraray Co., Ltd.
Most cited
By later US patents
- Anti-fogging coating film84US 4,478,909 AToray Industries, Inc. · 1984
- Hydrophilic polymer treatment of an activated polymeric material and use thereof72US 6,830,782 B22004
- Microspheric embolic materials having a dual structure of poly(vinyl acetate) core and poly(vinyl alcohol) shell and method for preparing the same68US 6,191,193 B1Korea Institute of Science and Technology · 2001
- Production of iodine stainable polyester polarizer film60US 4,659,523 AAmerican Hoechst Corporation · 1987
- Oxygen and moisture barrier metallized film structure58US 5,487,940 AMobil Oil Corporation · 1996