H01M 8/0662
Treatment of gaseous reactants or gaseous residues
Official title: Treatment of gaseous reactants or gaseous residues, e.g. cleaning
H01M8/0662 (Treatment of gaseous reactants or gaseous residues) appears on 2,066 US grants and 2,970 published applications in this corpus.
Search patents in H01M- Granted patents
- 2,066
- Published applications
- 2,970
- Assignees
- 825
- Inventors
- 4,943
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 1 | 0 |
| 1997 | 11 | 0 |
| 1998 | 9 | 0 |
| 1999 | 14 | 0 |
| 2000 | 18 | 0 |
| 2001 | 42 | 29 |
| 2002 | 45 | 138 |
| 2003 | 73 | 181 |
| 2004 | 74 | 174 |
| 2005 | 74 | 172 |
| 2006 | 88 | 185 |
| 2007 | 74 | 186 |
| 2008 | 83 | 168 |
| 2009 | 89 | 148 |
| 2010 | 135 | 146 |
| 2011 | 102 | 106 |
| 2012 | 122 | 100 |
| 2013 | 83 | 84 |
| 2014 | 101 | 118 |
| 2015 | 70 | 99 |
| 2016 | 80 | 85 |
| 2017 | 68 | 92 |
| 2018 | 78 | 70 |
| 2019 | 70 | 73 |
| 2020 | 88 | 86 |
| 2021 | 55 | 66 |
| 2022 | 59 | 77 |
| 2023 | 63 | 107 |
| 2024 | 54 | 102 |
| 2025 | 58 | 98 |
| 2026 | 40 | 80 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fuel cell system including ejector6 Oct 2026US 12,755,990 B2Versa Power Systems, Ltd.
- Fuel-cell exhaust system6 Oct 2026US 12,755,991 B2Purem GmbH
- Fuel cell system and exhaust gas treatment device15 Sep 2026US 12,738,512 B2Hyundai Moto Company
- Device and method for cleaning a fluid for the operation of a fuel cell1 Sep 2026US 12,725,812 B2Robert Bosch GmbH
- Hydrogen activation/ionization accelerating apparatus having fingerprint-type panel stack structure25 Aug 2026US 12,719,068 B2
- System and method for generating electricity using pyrolysis of plastics8 Oct 2026US 2026/0312100 A1
- Fuel cell system and control method therefor8 Oct 2026US 2026/0312102 A1Nissan Motor Co., Ltd.
- Method for operating an anode subsystem, and anode subsystem8 Oct 2026US 2026/0312103 A1Robert Bosch GmbH
- Co2 capture and hydrogen recovery from fuel cell anode off gas8 Oct 2026US 2026/0312104 A1Uop LLC
- Integration of fuel cell system and co2 capture unit for hydrogen production8 Oct 2026US 2026/0312105 A1Uop LLC
Most cited
By later US patents
- Coal gasification and hydrogen production system and method301US 5,955,039 ASiemens Westinghouse Power Corporation · 1999
- Process and system for converting carbonaceous feedstocks into energy without greenhouse gas emissions283US 6,187,465 B12001
- Application of fuel cells to power generation systems246US 5,401,589 ACJBD Limited · 1995
- Method and system for supplying hydrogen for use in fuel cells190US 6,348,278 B1Mobil Oil Corporation · 2002
- Thermally enhanced compact reformer179US 5,858,314 AZtek Corporation · 1999