C08J 5/2293
After-treatment of fluorine-containing membranes
Official title: {After-treatment of fluorine-containing membranes}
C08J5/2293 (After-treatment of fluorine-containing membranes) appears on 126 US grants and 80 published applications in this corpus.
Search patents in C08J- Granted patents
- 126
- Published applications
- 80
- Assignees
- 82
- Inventors
- 300
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 11 | 0 |
| 1979 | 11 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 2 |
| 2003 | 0 | 0 |
| 2004 | 2 | 4 |
| 2005 | 1 | 6 |
| 2006 | 0 | 2 |
| 2007 | 1 | 5 |
| 2008 | 1 | 3 |
| 2009 | 7 | 4 |
| 2010 | 2 | 5 |
| 2011 | 0 | 1 |
| 2012 | 5 | 1 |
| 2013 | 1 | 4 |
| 2014 | 1 | 1 |
| 2015 | 3 | 2 |
| 2016 | 1 | 4 |
| 2017 | 2 | 0 |
| 2018 | 2 | 5 |
| 2019 | 1 | 2 |
| 2020 | 4 | 7 |
| 2021 | 4 | 3 |
| 2022 | 3 | 5 |
| 2023 | 1 | 3 |
| 2024 | 6 | 3 |
| 2025 | 2 | 1 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Polymer and preparation thereof, and electrolyte film and preparation thereof22 Sep 2026US 12,744,245 B2Contemporary Amperex Technology (Hong Kong) Limited
- Membrane electrode assembly for COx reduction15 Jul 2025US 12,359,325 B2Twelve Benefit Corporation
- Composite particles and ion exchange membrane11 Mar 2025US 12,246,313 B2AGC Inc.
- Anion exchange ionomer with a poyarylene backbone and anion exchange membrane incorporating same31 Dec 2024US 12,180,346 B2
- Chemically modified anion exchange membrane1 Oct 2024US 12,104,030 B2Dankook University Cheonan Campus Industry Academic Cooperation Foundation
- Solid polymer electrolyte and method for producing same27 Aug 2026US 2026/0253944 A1LG Energy Solution, Ltd.
- Tetra-coordinated boronic acid-functionalized polymers6 Aug 2026US 2026/0229572 A11s1 Energy, Inc.
- Articles having microporous substrates with conformal coating, and methods for making and using same4 Jun 2026US 2026/0155414 A1W. L. Gore & Associates, Inc.
- Polymer and preparation thereof, and electrolyte film and preparation thereof14 May 2026US 2026/0135147 A1Contemporary Amperex Technology (Hong Kong) Limited
- Anion Exchange Ionomer With A Poyarylene Backbone and Anion Exchange Membrane Incorporating Same30 Apr 2026US 2026/0117034 A1USA Fortescue IP, Inc.
Most cited
By later US patents
- Sulfonic acid electrolytic cell having flourinated polymer membrane with hydration product less than 22,000254US 4,358,545 AThe Dow Chemical Company · 1982
- Process for making liquid composition of perfluorinated ion exchange polymer, and product thereof178US 4,433,082 AE. I. Du Pont de Nemours and Company · 1984
- Surface modified porous membrane and process77US 6,354,443 B1Millipore Corporation · 2002
- Process for making articles coated with a liquid composition of perfluorinated ion exchange resin60US 4,453,991 AE. I. Du Pont de Nemours and Company · 1984
- Vapor permselective membrane59US 4,909,810 AAsahi Glass Company, Limited · 1990