H01M 4/90
Selection of catalytic material
H01M4/90 (Selection of catalytic material) appears on 4,810 US grants and 6,712 published applications in this corpus.
Search patents in H01M- Granted patents
- 4,810
- Published applications
- 6,712
- Assignees
- 1,878
- Inventors
- 11,572
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 13 | 0 |
| 1978 | 15 | 0 |
| 1979 | 19 | 0 |
| 1980 | 19 | 0 |
| 1981 | 20 | 0 |
| 1982 | 17 | 0 |
| 1983 | 16 | 0 |
| 1984 | 24 | 0 |
| 1985 | 20 | 0 |
| 1986 | 11 | 0 |
| 1987 | 17 | 0 |
| 1988 | 16 | 0 |
| 1989 | 24 | 0 |
| 1990 | 23 | 0 |
| 1991 | 25 | 0 |
| 1992 | 31 | 0 |
| 1993 | 22 | 0 |
| 1994 | 32 | 0 |
| 1995 | 24 | 0 |
| 1996 | 26 | 0 |
| 1997 | 38 | 0 |
| 1998 | 41 | 0 |
| 1999 | 52 | 0 |
| 2000 | 53 | 0 |
| 2001 | 65 | 23 |
| 2002 | 56 | 134 |
| 2003 | 74 | 196 |
| 2004 | 93 | 280 |
| 2005 | 101 | 269 |
| 2006 | 110 | 274 |
| 2007 | 106 | 324 |
| 2008 | 101 | 284 |
| 2009 | 134 | 311 |
| 2010 | 213 | 364 |
| 2011 | 232 | 335 |
| 2012 | 198 | 285 |
| 2013 | 199 | 292 |
| 2014 | 191 | 298 |
| 2015 | 211 | 296 |
| 2016 | 208 | 274 |
| 2017 | 217 | 276 |
| 2018 | 220 | 254 |
| 2019 | 215 | 244 |
| 2020 | 222 | 256 |
| 2021 | 187 | 292 |
| 2022 | 193 | 266 |
| 2023 | 200 | 267 |
| 2024 | 178 | 241 |
| 2025 | 185 | 210 |
| 2026 | 91 | 167 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Membrane-electrode assembly capable of satisfying both of two requirements of excellent performance and high durability, and fuel cell including same6 Oct 2026US 12,755,996 B2Kolon Industries, Inc.
- Aqueous Zn||NO2 electrochemical cell6 Oct 2026US 12,756,037 B2City University of Hong Kong
- Solid oxide cell29 Sep 2026US 12,749,690 B2Samsung Electro-Mechanics Co., Ltd.
- Lipolysis device, lipolysis method, and electric power generation method22 Sep 2026US 12,740,881 B2Murata Manufacturing Co., Ltd.
- Electrochemical catalyst of core-shell structure and manufacturing method thereof22 Sep 2026US 12,744,222 B2Korea Institute of Science and Technology
- Oxygen reduction catalyst and use thereof8 Oct 2026US 2026/0307067 A1Toyota Jidosha Kabushiki Kaisha
- Oxygen evolution reaction catalyst and method for its preparation8 Oct 2026US 2026/0308786 A1Johnson Matthey Public Limited Company
- Electrochemical oxygen reduction catalyst8 Oct 2026US 2026/0312075 A1Toyota Jidosha Kabushiki Kaisha
- Multi-metallic oxygen reduction reaction (orr) cu-pt-au catalyst in high-temperature proton exchange membrane fuel cells8 Oct 2026US 2026/0312076 A1Brown University
- Oxygen reduction catalyst and use thereof8 Oct 2026US 2026/0312077 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Enzyme electrode739US 4,224,125 AMatsushita Electric Industrial Co., Ltd. · 1980
- Biological fuel cell and method434US 6,294,281 B1TheraSense, Inc. · 2001
- Nanostructured fillers and carriers316US 6,228,904 B1Nanomaterials Research Corporation · 2001
- Materials and products using nanostructured non-stoichiometric substances226US 6,344,271 B12002
- Nanotechnology for biomedical products224US 6,572,672 B2NanoProducts Corporation · 2003