H01M 2004/8684
Negative electrodes
Official title: {Negative electrodes}
H01M2004/8684 (Negative electrodes) appears on 419 US grants and 518 published applications in this corpus.
Search patents in H01M- Granted patents
- 419
- Published applications
- 518
- Assignees
- 319
- Inventors
- 1,447
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 10 | 0 |
| 1992 | 5 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 1 |
| 2002 | 8 | 16 |
| 2003 | 11 | 16 |
| 2004 | 12 | 23 |
| 2005 | 10 | 19 |
| 2006 | 8 | 18 |
| 2007 | 6 | 23 |
| 2008 | 5 | 23 |
| 2009 | 6 | 27 |
| 2010 | 15 | 13 |
| 2011 | 15 | 10 |
| 2012 | 11 | 6 |
| 2013 | 8 | 8 |
| 2014 | 7 | 13 |
| 2015 | 5 | 16 |
| 2016 | 12 | 26 |
| 2017 | 11 | 13 |
| 2018 | 12 | 37 |
| 2019 | 21 | 23 |
| 2020 | 26 | 26 |
| 2021 | 19 | 37 |
| 2022 | 18 | 26 |
| 2023 | 29 | 31 |
| 2024 | 14 | 37 |
| 2025 | 19 | 19 |
| 2026 | 12 | 11 |
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.
- Solid oxide cell29 Sep 2026US 12,749,690 B2Samsung Electro-Mechanics Co., Ltd.
- 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
- Bolt fastened fuel assembly for biofuels23 Jun 2026US 12,665,211 B2Imam Abdulrahman Bin Faisal University
- Hydrocarbon fuel cell24 Sep 2026US 2026/0290866 A1
- Fuel cells having a segmented construction for mitigating air-air start degradation27 Aug 2026US 2026/0253916 A1Robert Bosch GmbH
- Optimizing membrane electrode assembly construction to reduce fuel crossover and enhance open circuit voltage performance in pem fuel cells20 Aug 2026US 2026/0245935 A1Honda Motor Co., Ltd.
- Methods and compositions for nanocomposites on electrode surfaces6 Aug 2026US 2026/0229551 A1West Virginia Board of Governors on Behalf of West Virginia University
- Electrode for fuel cell, membrane-electrode assembly, and manufacturing method therefor30 Jul 2026US 2026/0221466 A1Kolon Industries, Inc.
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
- Dual compartment anode structure103US 4,702,973 AInstitute of Gas Technology · 1987
- Metal-carbon composite powders, methods for producing powders and devices fabricated from same98US 6,103,393 ASuperior MicroPowders LLC · 2000
- Membrane-electrode assembly for a direct methanol fuel cell88US 5,523,177 AGiner, Inc. · 1996