H01M 8/1023
Having only carbon
Official title: having only carbon, e.g. polyarylenes, polystyrenes or polybutadiene-styrenes
H01M8/1023 (Having only carbon) appears on 1,085 US grants and 1,482 published applications in this corpus.
Search patents in H01M- Granted patents
- 1,085
- Published applications
- 1,482
- Assignees
- 516
- Inventors
- 2,725
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 12 | 0 |
| 1996 | 5 | 0 |
| 1997 | 10 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 11 | 0 |
| 2001 | 17 | 5 |
| 2002 | 17 | 41 |
| 2003 | 17 | 58 |
| 2004 | 29 | 92 |
| 2005 | 35 | 94 |
| 2006 | 32 | 133 |
| 2007 | 41 | 106 |
| 2008 | 44 | 92 |
| 2009 | 42 | 116 |
| 2010 | 78 | 84 |
| 2011 | 76 | 79 |
| 2012 | 67 | 61 |
| 2013 | 59 | 43 |
| 2014 | 46 | 45 |
| 2015 | 57 | 35 |
| 2016 | 35 | 46 |
| 2017 | 34 | 34 |
| 2018 | 31 | 33 |
| 2019 | 37 | 34 |
| 2020 | 37 | 38 |
| 2021 | 23 | 37 |
| 2022 | 30 | 38 |
| 2023 | 28 | 43 |
| 2024 | 31 | 41 |
| 2025 | 26 | 27 |
| 2026 | 13 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Non-aqueous redox flow batteries6 Oct 2026US 12,755,995 B2ENI S. p. A.
- Anion exchange polymers and membranes for electrolysis25 Aug 2026US 12,715,968 B2Uop LLC
- Fluorine-containing compound having sulfonic acid group and polymer electrolyte fuel cell25 Aug 2026US 12,719,070 B2Nissan Chemical Corporation
- Preparation of metallocene containing cationic polymers for anion exchange applications28 Jul 2026US 12,691,419 B2University of South Carolina
- Sulfonated polymers and compositions thereof26 May 2026US 12,637,532 B2Kraton Corporation
- Elastic sulfonated styrene diene block copolymers8 Oct 2026US 2026/0308343 A1Rensselaer Polytechnic Institute
- Crosslinked copolymer, polymer membrane comprising the same, and anion exchange membrane comprising the polymer membrane1 Oct 2026US 2026/0302299 A1Hanwha Solutions Corporation
- Membrane electrode assembly and method for producing same, fuel cell, and electrolysis cell17 Sep 2026US 2026/0279865 A1Greenerity GmbH
- Cationic Compounds for Anion Exchange Membranes3 Sep 2026US 2026/0257990 A1Agfa-Gevaert
- Anion exchange polymer comprising 4-x-quinuclidinium structure, method for preparing same, and anion exchange membrane comprising same27 Aug 2026US 2026/0249282 A1Hd Hyundai Oilbank Co., Ltd.
Most cited
By later US patents
- Electrochemical production of ozone and hydrogen peroxide465US 5,972,196 ALynntech, Inc. · 1999
- Composite solid polymer electrolyte membranes346US 7,550,216 B2Foster-Miller, Inc. · 2009
- Ultra-thin integral composite membrane242US 5,547,551 AW. L. Gore & Associates, Inc. · 1996
- Surface replica fuel cell for micro fuel cell electrical power pack208US 5,759,712 A1998
- Aqueous liquid feed organic fuel cell using solid polymer electrolyte membrane173US 5,599,638 ACalifornia Institute of Technology · 1997