H01M 8/0668
Removal of carbon monoxide or carbon dioxide
H01M8/0668 (Removal of carbon monoxide or carbon dioxide) appears on 600 US grants and 934 published applications in this corpus.
Search patents in H01M- Granted patents
- 600
- Published applications
- 934
- Assignees
- 335
- Inventors
- 1,617
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 13 | 12 |
| 2002 | 3 | 41 |
| 2003 | 16 | 56 |
| 2004 | 24 | 60 |
| 2005 | 21 | 52 |
| 2006 | 25 | 73 |
| 2007 | 26 | 69 |
| 2008 | 24 | 68 |
| 2009 | 35 | 44 |
| 2010 | 50 | 50 |
| 2011 | 33 | 35 |
| 2012 | 40 | 28 |
| 2013 | 24 | 23 |
| 2014 | 32 | 48 |
| 2015 | 18 | 19 |
| 2016 | 30 | 28 |
| 2017 | 16 | 19 |
| 2018 | 17 | 15 |
| 2019 | 18 | 23 |
| 2020 | 23 | 28 |
| 2021 | 14 | 22 |
| 2022 | 21 | 19 |
| 2023 | 21 | 34 |
| 2024 | 22 | 26 |
| 2025 | 19 | 21 |
| 2026 | 10 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel cell system including ejector6 Oct 2026US 12,755,990 B2Versa Power Systems, Ltd.
- Gas reformer for producing hydrogen16 Jun 2026US 12,655,020 B2Fluor Technologies Corporation
- Use of a fuel cell to decarbonize a hydrocarbon cracking system16 Jun 2026US 12,658,461 B2Chevron Phillips Chemical Company LP
- SOE-SOFC-CCS hybrid system26 May 2026US 12,640,384 B2Fci
- Fuel cell exhaust gas processing14 Apr 2026US 12,603,314 B1EQT Corporation
- 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
- System and method for processing syngas from fuel cell system exhaust1 Oct 2026US 2026/0302297 A1Bloom Energy Corporation
- Use of a fuel cell to decarbonize a hydrocarbon cracking system17 Sep 2026US 2026/0279863 A1Chevron Phillips Chemical Company LP
- Carbon dioxide separation plant using external refrigeration circuit, and method13 Aug 2026US 2026/0235355 A1Nuovo Pignone Tecnologie Srl
Most cited
By later US patents
- Fuel cell power generation system138US 5,658,681 AAisin Aw Co., Ltd. · 1997
- Hydrogen-selective metal membrane modules and method of forming the same135US 6,319,306 B1IdaTech, LLC · 2001
- Separation of carbon dioxide (CO2) from gas mixtures120US 7,618,606 B2The Ohio State University · 2009
- Apparatus for providing a pure hydrogen stream for use with fuel cells117US 6,190,623 B1Uop LLC · 2001
- Method of linking membrane purification of hydrogen to its generation by steam reforming of a methanol-like fuel107US 6,171,574 B2Walter Juda Associates, Inc. · 2001