B29K 2029/04
Pvoh, i.e. polyvinyl alcohol
Official title: {PVOH, i.e. polyvinyl alcohol (B29K2031/04 takes precedence)}
B29K2029/04 (Pvoh, i.e. polyvinyl alcohol) appears on 371 US grants and 528 published applications in this corpus.
Search patents in B29K- Granted patents
- 371
- Published applications
- 528
- Assignees
- 274
- Inventors
- 1,146
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 8 |
| 2003 | 3 | 8 |
| 2004 | 8 | 18 |
| 2005 | 4 | 7 |
| 2006 | 4 | 11 |
| 2007 | 4 | 11 |
| 2008 | 6 | 17 |
| 2009 | 8 | 14 |
| 2010 | 7 | 10 |
| 2011 | 5 | 21 |
| 2012 | 7 | 22 |
| 2013 | 12 | 17 |
| 2014 | 11 | 19 |
| 2015 | 12 | 31 |
| 2016 | 24 | 47 |
| 2017 | 21 | 31 |
| 2018 | 23 | 20 |
| 2019 | 35 | 30 |
| 2020 | 24 | 33 |
| 2021 | 19 | 28 |
| 2022 | 14 | 32 |
| 2023 | 25 | 27 |
| 2024 | 25 | 26 |
| 2025 | 23 | 25 |
| 2026 | 9 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for making an optical functional film11 Aug 2026US 12,703,160 B2
- Multilayer, coextruded polyolefin film and manufacture thereof on triple bubble lines28 Jul 2026US 12,691,625 B2Cryovac, Inc.
- Resin composition28 Jul 2026US 12,692,372 B2Plantic Technologies Ltd.
- Multilayer structure, and separation method and recycling method therefor16 Jun 2026US 12,654,430 B2Kuraray Co., Ltd.
- Process of sealing polyvinylalcohol films16 Jun 2026US 12,655,371 B2The Procter & Gamble Company
- High puncture resistant recyclable packaging film with polar polymer outer layer8 Oct 2026US 2026/0307317 A1ProAmpac Holdings Inc.
- Method for producing a single- or multi-layered film, single- or multi-layered, extruded, simultaneously biaxially stretched and thermofixed film and corresponding uses1 Oct 2026US 2026/0295916 A1Kuhne Anlagenbau GmbH
- Polyvinyl alcohol resin, water-soluble film, extrusion-molded article, filament, nonwoven fabric, container, method for producing water-soluble film, and aqueous solution13 Aug 2026US 2026/0234302 A1Kuraray Co., Ltd.
- Polyvinyl alcohol-based film23 Jul 2026US 2026/0208402 A1Mitsubishi Chemical Corporation
- Assembly for manufacturing water-soluble pouches16 Jul 2026US 2026/0200619 A1The Procter & Gamble Company
Most cited
By later US patents
- Method of fabricating ultrasonic coupler149US 5,882,557 AFujitsu Limited · 1999
- Support structures and deposition techniques for 3D printing120US 9,469,057 B23D Systems, Inc. · 2016
- Composite preforms including three-dimensional interconnections117US 9,381,702 B2Seriforge Inc. · 2016
- Systems for three-dimensional weaving of composite preforms and products with varying cross-sectional topology115US 9,527,248 B2Seriforge Inc. · 2016
- Surgical training aids and methods of fabrication thereof70US 8,870,576 B2The University of Western Ontario · 2014