C04B 41/4869
Polyvinylalcohols, polyvinylacetates
Official title: {Polyvinylalcohols, polyvinylacetates}
C04B41/4869 (Polyvinylalcohols, polyvinylacetates) appears on 35 US grants and 30 published applications in this corpus.
Search patents in C04B- Granted patents
- 35
- Published applications
- 30
- Assignees
- 30
- Inventors
- 94
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 3 |
| 2016 | 1 | 3 |
| 2017 | 1 | 1 |
| 2018 | 2 | 0 |
| 2019 | 2 | 3 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 2 |
| 2023 | 2 | 3 |
| 2024 | 3 | 4 |
| 2025 | 4 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Latent heat storage gypsum board and partition structure9 Dec 2025US 12,492,330 B2Yoshino Gypsum Co., Ltd.
- Material restoration composition22 Jul 2025US 12,365,810 B2
- Crack self-healing agent for cement-based materials capable of binding corrosive ions in seawater, and preparation method thereof8 Jul 2025US 12,351,528 B2South China University of Technology
- Method for producing a cementitious board, apparatus for producing a cementitious board, and cementitious board17 Jun 2025US 12,330,333 B2Knauf Gips KG
- Boron nitride aerogel interface coating precursor for ceramic matrix composites3 Dec 2024US 12,157,704 B2Rtx Corporation
- Material restoration composition19 Sep 2024US 2024/0309236 A1
- Latent heat storage gypsum board and partition structure25 Jul 2024US 2024/0247176 A1Yoshino Gypsum Co., Ltd.
- Boron nitride aerogel interface coating precursor for ceramic matrix composites20 Jun 2024US 2024/0199498 A1Rtx Corporation
- Method for producing a cementitious board, apparatus for producing a cementitious board, and cementitious board29 Feb 2024US 2024/0066754 A1Knauf Gips KG
- Material restoration composition and method21 Sep 2023US 2023/0295454 A1
Most cited
By later US patents
- Articles having a polymeric shell and method for preparing same111US 5,443,727 AMinnesota Mining and Manufacturing Company · 1995
- Hydrophilic membranes and filters and method for preparing same51US 5,503,746 AMinnesota Mining and Manufacturing Company · 1996
- Hydrophilic microporous membrane for drug delivery devices and method for preparing same46US 5,573,668 AMinnesota Mining and Manufacturing Company · 1996
- Method for retarding efflorescence in building materials and building material that exhibits reduced efflorescence23US 5,681,385 A1997
- Hydrophilic membranes for electrochemical devices and method for preparing same18US 5,616,246 AMinnestoa Mining and Manufacturing Company · 1997