H01M 8/1088
Chemical modification
Official title: Chemical modification, e.g. sulfonation
H01M8/1088 (Chemical modification) appears on 194 US grants and 274 published applications in this corpus.
Search patents in H01M- Granted patents
- 194
- Published applications
- 274
- Assignees
- 178
- Inventors
- 652
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 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 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 2 |
| 2002 | 4 | 10 |
| 2003 | 3 | 3 |
| 2004 | 7 | 16 |
| 2005 | 7 | 17 |
| 2006 | 2 | 20 |
| 2007 | 10 | 21 |
| 2008 | 7 | 23 |
| 2009 | 4 | 14 |
| 2010 | 15 | 38 |
| 2011 | 12 | 17 |
| 2012 | 23 | 5 |
| 2013 | 11 | 7 |
| 2014 | 7 | 3 |
| 2015 | 8 | 7 |
| 2016 | 6 | 4 |
| 2017 | 6 | 6 |
| 2018 | 5 | 5 |
| 2019 | 2 | 6 |
| 2020 | 5 | 6 |
| 2021 | 4 | 9 |
| 2022 | 4 | 9 |
| 2023 | 10 | 12 |
| 2024 | 7 | 8 |
| 2025 | 3 | 3 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Preparation process for composite membrane for fuel cells8 Sep 2026US 12,731,805 B2Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Method for producing fluorinated polymer and method for producing fluorinated ion exchange polymer1 Sep 2026US 12,723,119 B2AGC Inc.
- Fluorine-containing compound having sulfonic acid group and polymer electrolyte fuel cell25 Aug 2026US 12,719,070 B2Nissan Chemical Corporation
- Composite high-temperature proton exchange membrane for fuel cell, preparation method therefor and use thereof25 Aug 2026US 12,719,071 B2Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- High-temperature PEMFC including polymer of intrinsic microporosity preventing phosphoric acid poisoning and method of manufacturing the same7 Jul 2026US 12,676,330 B2Hyundai Motor Company
- Elastic sulfonated styrene diene block copolymers8 Oct 2026US 2026/0308343 A1Rensselaer Polytechnic Institute
- Proton exchange membrane based on pvdf in the form of cryocrushed granules9 Jul 2026US 2026/0196545 A1Arkema France
- Method for manufacturing reinforced composite membrane and reinforced composite membrane obtained thereby9 Apr 2026US 2026/0100392 A1Korea Institute of Energy Research
- Anion conducting polymer electrolyte membranes by ultraviolet-light curing for quasi-solid-state zinc-air batteries9 Oct 2025US 2025/0316735 A1Council of Scientific and Industrial Research
- Polyelectrolyte multilayer coated proton exchange membrane for electrolysis and fuel cell applications9 Oct 2025US 2025/0316736 A1Uop LLC
Most cited
By later US patents
- Polymer material for electrolytic membranes in fuel cells83US 5,795,496 ACalifornia Institute of Technology · 1998
- Graft polymeric membranes and ion-exchange membranes formed therefrom82US 6,723,758 B2Ballard Power Systems Inc. · 2004
- Trifluorostyrene sulfonic acid membranes69US 4,012,303 AHooker Chemicals & Plastics Corporation · 1977
- Method for making reinforced ion exchange membranes59US 5,447,636 AE. I. Du Pont de Nemours and Company · 1995
- Polymer electrolyte membranes for use in fuel cells57US 6,444,343 B1University of Southern California · 2002