Y02E 60/50
Fuel cells
Y02E60/50 (Fuel cells) appears on 30,148 US grants and 40,662 published applications in this corpus.
Search patents in Y02E- Granted patents
- 30,148
- Published applications
- 40,662
- Assignees
- 6,138
- Inventors
- 45,635
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 84 | 0 |
| 1977 | 70 | 0 |
| 1978 | 71 | 0 |
| 1979 | 62 | 0 |
| 1980 | 92 | 0 |
| 1981 | 88 | 0 |
| 1982 | 95 | 0 |
| 1983 | 90 | 0 |
| 1984 | 99 | 0 |
| 1985 | 108 | 0 |
| 1986 | 104 | 0 |
| 1987 | 122 | 0 |
| 1988 | 132 | 0 |
| 1989 | 146 | 0 |
| 1990 | 117 | 0 |
| 1991 | 107 | 0 |
| 1992 | 134 | 0 |
| 1993 | 150 | 0 |
| 1994 | 168 | 0 |
| 1995 | 154 | 0 |
| 1996 | 153 | 0 |
| 1997 | 164 | 0 |
| 1998 | 205 | 0 |
| 1999 | 254 | 0 |
| 2000 | 295 | 0 |
| 2001 | 383 | 223 |
| 2002 | 471 | 1004 |
| 2003 | 618 | 1304 |
| 2004 | 727 | 1760 |
| 2005 | 660 | 1791 |
| 2006 | 766 | 1949 |
| 2007 | 725 | 2021 |
| 2008 | 753 | 1937 |
| 2009 | 906 | 2150 |
| 2010 | 1402 | 2205 |
| 2011 | 1347 | 1797 |
| 2012 | 1429 | 1586 |
| 2013 | 1299 | 1543 |
| 2014 | 1358 | 1645 |
| 2015 | 1311 | 1676 |
| 2016 | 1200 | 1567 |
| 2017 | 1319 | 1451 |
| 2018 | 1227 | 1545 |
| 2019 | 1364 | 1512 |
| 2020 | 1403 | 1481 |
| 2021 | 1180 | 1517 |
| 2022 | 1242 | 1533 |
| 2023 | 1269 | 1759 |
| 2024 | 970 | 1564 |
| 2025 | 1040 | 1292 |
| 2026 | 515 | 850 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Smart hydrogen storage protocol29 Sep 2026US 12,747,833 B2The Texas A&M University System
- Construction machine25 Aug 2026US 12,715,314 B2Hitachi Construction Machinery Co., Ltd.
- Block copolymer, production method therefor, polymeric electrolyte material, polymeric electrolyte molded article, polymeric electrolyte film, electrolyte film equipped with catalyst layer, membrane electrode composite, solid polymer fuel cell, and water electrolysis type hydrogen generating device25 Aug 2026US 12,715,962 B2Toray Industries, Inc.
- Anion exchange polymers and membranes for electrolysis25 Aug 2026US 12,715,968 B2Uop LLC
- Pump free alkaline electrolyte membrane water electrolytic device25 Aug 2026US 12,716,135 B2The United States of America as represented by the Secretary of the Army
- Steerable intra-luminal medical device27 Aug 2026US 2026/0249050 A1Board of Regents, The University of Texas System
- Ammonia decomposition reactor having function of preheating ammonia gas27 Aug 2026US 2026/0249262 A1Fuzhou University
- Reforming device27 Aug 2026US 2026/0249266 A1Kabushiki Kaisha Toyota Jidoshokki
- 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.
- Wing tank vaporizer for solid oxide fuel cell on unmanned aircraft27 Aug 2026US 2026/0250009 A1Lockheed Martin Corporation
Most cited
By later US patents
- Fuel level indicator for combustion tools1,057US 6,722,550 B1Illinois Tool Works Inc. · 2004
- Ionic semiconductor materials and applications thereof795US 5,055,171 AT and G Corporation · 1991
- Enzyme electrode739US 4,224,125 AMatsushita Electric Industrial Co., Ltd. · 1980
- Method for manufacturing porous structure and method for forming pattern645US 6,565,763 B1Kabushiki Kaisha Toshiba · 2003
- Process for producing zirconium oxide thin films621US 7,754,621 B2ASM International N.V. · 2010