H01M 2004/8678
Characterised by the polarity
Official title: {characterised by the polarity}
H01M2004/8678 (Characterised by the polarity) appears on 989 US grants and 1,254 published applications in this corpus.
Search patents in H01M- Granted patents
- 989
- Published applications
- 1,254
- Assignees
- 613
- Inventors
- 3,152
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 7 | 0 |
| 1986 | 2 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 9 | 0 |
| 1990 | 9 | 0 |
| 1991 | 14 | 0 |
| 1992 | 9 | 0 |
| 1993 | 9 | 0 |
| 1994 | 9 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 11 | 0 |
| 1998 | 1 | 0 |
| 1999 | 13 | 0 |
| 2000 | 16 | 0 |
| 2001 | 13 | 2 |
| 2002 | 20 | 19 |
| 2003 | 17 | 25 |
| 2004 | 18 | 36 |
| 2005 | 14 | 29 |
| 2006 | 11 | 35 |
| 2007 | 8 | 50 |
| 2008 | 8 | 36 |
| 2009 | 14 | 39 |
| 2010 | 31 | 33 |
| 2011 | 27 | 34 |
| 2012 | 18 | 16 |
| 2013 | 15 | 25 |
| 2014 | 21 | 33 |
| 2015 | 22 | 56 |
| 2016 | 27 | 71 |
| 2017 | 34 | 58 |
| 2018 | 46 | 67 |
| 2019 | 55 | 62 |
| 2020 | 60 | 82 |
| 2021 | 57 | 97 |
| 2022 | 55 | 84 |
| 2023 | 81 | 94 |
| 2024 | 65 | 81 |
| 2025 | 41 | 53 |
| 2026 | 32 | 37 |
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.
- Solid oxide cell29 Sep 2026US 12,749,690 B2Samsung Electro-Mechanics Co., Ltd.
- Electrochemical catalyst of core-shell structure and manufacturing method thereof22 Sep 2026US 12,744,222 B2Korea Institute of Science and Technology
- Non-aqueous electrolyte and lithium secondary battery including the same15 Sep 2026US 12,738,540 B2LG Energy Solution, Ltd.
- 4H/fcc heterophase platinum based nanomaterial on nanorod for electrocatalytic alcohol oxidation8 Sep 2026US 12,731,794 B2City University of Hong Kong
- Oxygen reduction catalyst and use thereof8 Oct 2026US 2026/0307067 A1Toyota Jidosha Kabushiki Kaisha
- Electrochemical oxygen reduction catalyst8 Oct 2026US 2026/0312075 A1Toyota Jidosha Kabushiki Kaisha
- Fuel cell electrode and fuel cell comprising the same1 Oct 2026US 2026/0302264 A1Korea Institute of Science and Technology
- Membrane electrode assembly24 Sep 2026US 2026/0290850 A1Kabushiki Kaisha Toyota Chuo Kenkyusho
- Membrane electrode assembly24 Sep 2026US 2026/0290851 A1Kabushiki Kaisha Toyota Chuo Kenkyusho
Most cited
By later US patents
- Integrated fuel reformation and thermal management system for solid oxide fuel cell systems120US 6,485,852 B1Delphi Technologies, Inc. · 2002
- Hydrogen forming reaction process111US 4,810,485 AInstitute of Gas Technology · 1989
- Catalytic air cathode for air-metal batteries109US 6,127,061 AHigh-Density Energy, Inc. · 2000
- Fuel cell interconnect device108US 5,942,349 ACeramic Fuel Cells Limited · 1999
- Fuel system using redox flow battery108US 8,778,552 B224M Technologies, Inc. · 2014