H01M 2004/8689
Positive electrodes
Official title: {Positive electrodes}
H01M2004/8689 (Positive electrodes) appears on 635 US grants and 767 published applications in this corpus.
Search patents in H01M- Granted patents
- 635
- Published applications
- 767
- Assignees
- 430
- Inventors
- 2,092
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 9 | 0 |
| 1998 | 1 | 0 |
| 1999 | 6 | 0 |
| 2000 | 10 | 0 |
| 2001 | 11 | 2 |
| 2002 | 13 | 5 |
| 2003 | 8 | 14 |
| 2004 | 10 | 16 |
| 2005 | 6 | 10 |
| 2006 | 5 | 18 |
| 2007 | 4 | 31 |
| 2008 | 3 | 13 |
| 2009 | 10 | 15 |
| 2010 | 15 | 19 |
| 2011 | 13 | 24 |
| 2012 | 9 | 9 |
| 2013 | 8 | 17 |
| 2014 | 13 | 22 |
| 2015 | 16 | 36 |
| 2016 | 18 | 48 |
| 2017 | 21 | 39 |
| 2018 | 31 | 54 |
| 2019 | 35 | 43 |
| 2020 | 45 | 58 |
| 2021 | 46 | 69 |
| 2022 | 41 | 51 |
| 2023 | 50 | 60 |
| 2024 | 47 | 41 |
| 2025 | 30 | 32 |
| 2026 | 18 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- 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.
- Electrochemical cell catalyst layers18 Aug 2026US 12,712,188 B2Robert Bosch GmbH
- Fe—N—C catalysts synthesized by non-contact pyrolysis of gas phase iron11 Aug 2026US 12,706,314 B2Northeastern University
- 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
- 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
- Consumable replaceable anodes for batteries106US 4,246,324 ADiamond Shamrock Technologies S. A. · 1981
- Catalyst material85US 5,068,161 AJohnson Matthey Public Limited Company · 1991
- Method of making a layered composite electrode/electrolyte80US 6,846,511 B2The Regents of the University of California · 2005