B01D 71/382
Polyvinylethers
Official title: {Polyvinylethers}
B01D71/382 (Polyvinylethers) appears on 8 US grants and 8 published applications in this corpus.
Search patents in B01D- Granted patents
- 8
- Published applications
- 8
- Assignees
- 8
- Inventors
- 25
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 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 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Porous membrane including perfluoroalkoxy alkane (PFA)-based melt-extruded film and having pores controlled by biaxial stretching, and manufacturing method therefor13 Jan 2026US 12,521,694 B2Pukyong National University Industry-University Cooperation Foundation
- Functional fluoropolymers28 Jan 2025US 12,209,152 B2Arkema Inc.
- Method of forming a hydrophilic membrane19 Jul 2016US 9,393,529 B23M Innovative Properties Company
- Low equivalent weight ionomer9 May 2006US 7,041,409 B2Gore Enterprise Holdings, Inc.
- Low equivalent weight ionomer4 Apr 2006US 7,022,428 B2Gore Enterprise Holdings, Inc.
- Functional fluoropolymers5 Jun 2025US 2025/0179230 A1Arkema Inc.
- Porous membrane including perfluoroalkoxy alkane (pfa)-based melt-extruded film and having pores controlled by biaxial stretching, and manufacturing method therefor30 Nov 2023US 2023/0381742 A1Pukyong National University Industry-University Cooperation Foundation
- Polyvinylidene fluoride resin-made porous membrane and method for producing same25 Nov 2021US 2021/0362100 A1Maruzen Petrochemical Co., Ltd.
- Functional fluoropolymers3 Jun 2021US 2021/0163647 A1Arkema Inc.
- Method of forming a hydrophilic membrane21 Apr 2011US 2011/0092606 A13M Innovative Properties Company
Most cited
By later US patents
- Multilayer membrane and process of manufacturing same6US 5,164,088 AMetallgesellschaft Aktiengesellschaft · 1992
- Electrodialysis for aqueous solution of base5US 4,051,002 AAsahi Glass Company, Limited · 1977
- Low equivalent weight ionomer4US 7,041,409 B2Gore Enterprise Holdings, Inc. · 2006
- Low equivalent weight ionomer2US 6,861,489 B2Gore Enterprise Holdings, Inc. · 2005
- Low equivalent weight ionomer2US 7,022,428 B2Gore Enterprise Holdings, Inc. · 2006