C09D 129/04
Polyvinyl alcohol
Official title: Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
C09D129/04 (Polyvinyl alcohol) appears on 510 US grants and 813 published applications in this corpus.
Search patents in C09D- Granted patents
- 510
- Published applications
- 813
- Assignees
- 443
- Inventors
- 1,879
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 3 |
| 2002 | 12 | 13 |
| 2003 | 6 | 16 |
| 2004 | 5 | 9 |
| 2005 | 7 | 12 |
| 2006 | 4 | 12 |
| 2007 | 8 | 14 |
| 2008 | 3 | 13 |
| 2009 | 14 | 20 |
| 2010 | 5 | 12 |
| 2011 | 7 | 12 |
| 2012 | 8 | 16 |
| 2013 | 11 | 23 |
| 2014 | 12 | 22 |
| 2015 | 16 | 54 |
| 2016 | 20 | 49 |
| 2017 | 35 | 47 |
| 2018 | 33 | 47 |
| 2019 | 35 | 34 |
| 2020 | 30 | 47 |
| 2021 | 21 | 40 |
| 2022 | 24 | 69 |
| 2023 | 23 | 72 |
| 2024 | 31 | 68 |
| 2025 | 41 | 51 |
| 2026 | 31 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ethylene-vinyl alcohol copolymer and aqueous solution using same22 Sep 2026US 12,742,029 B2Kuraray Co., Ltd.
- Water-soluble film and packaging25 Aug 2026US 12,715,966 B2Kuraray Co., Ltd.
- Multi-material sheathing system with sustained thermal insulation performance11 Aug 2026US 12,703,778 B2Owens Corning Intellectual Capital, LLC
- Barrier film and packaging material28 Jul 2026US 12,692,057 B2Dai Nippon Printing Co.Ltd.
- Resin composition28 Jul 2026US 12,692,372 B2Plantic Technologies Ltd.
- Protective film agent, protective film forming method, and chip manufacturing method1 Oct 2026US 2026/0297341 A1Disco Corporation
- Vinyl alcohol polymer, vinyl-alcohol-polymer-containing aqueous solution, coating material, and cement admixture24 Sep 2026US 2026/0286025 A1Kuraray Co., Ltd.
- Coating composition and paint-protective coating material17 Sep 2026US 2026/0275147 A1Nitto Denko Corporation
- Coating composition and radiation shielding coating composition10 Sep 2026US 2026/0265570 A1Mitsubishi Chemical Corporation
- Poly(vinyl alcohol) resin, resin composition, ceramic green sheet, and ceramic capacitor13 Aug 2026US 2026/0234301 A1Sekisui Chemical Co., Ltd.
Most cited
By later US patents
- Rate-reducing membrane for release of an agent367US 6,753,071 B1Advanced Cardiovascular Systems, Inc. · 2004
- Articles having a polymeric shell and method for preparing same111US 5,443,727 AMinnesota Mining and Manufacturing Company · 1995
- Poly alcohol-based binder composition88US 6,884,849 B2Owens Corning Fiberglas Technology, Inc. · 2005
- Anti-fogging coating film84US 4,478,909 AToray Industries, Inc. · 1984
- Binder compositions and associated methods82US 7,842,382 B2Knauf Insulation, Inc. · 2010