C01B 2203/0445
Selective methanation
C01B2203/0445 (Selective methanation) appears on 297 US grants and 373 published applications in this corpus.
Search patents in C01B- Granted patents
- 297
- Published applications
- 373
- Assignees
- 147
- Inventors
- 674
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 6 |
| 2002 | 6 | 5 |
| 2003 | 9 | 12 |
| 2004 | 7 | 17 |
| 2005 | 6 | 12 |
| 2006 | 6 | 15 |
| 2007 | 9 | 16 |
| 2008 | 12 | 20 |
| 2009 | 8 | 21 |
| 2010 | 8 | 29 |
| 2011 | 16 | 26 |
| 2012 | 20 | 21 |
| 2013 | 13 | 22 |
| 2014 | 22 | 11 |
| 2015 | 15 | 19 |
| 2016 | 19 | 11 |
| 2017 | 9 | 11 |
| 2018 | 10 | 9 |
| 2019 | 10 | 12 |
| 2020 | 8 | 12 |
| 2021 | 12 | 11 |
| 2022 | 5 | 12 |
| 2023 | 12 | 16 |
| 2024 | 7 | 16 |
| 2025 | 4 | 7 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Chemical synthesis plant5 May 2026US 12,617,679 B2Haldor TopsøE A/S
- Direct coupled atmospheric carbon reduction device with hydrogen utilization24 Mar 2026US 12,583,744 B2
- Ammonia and urea production in reverse flow reactors3 Mar 2026US 12,565,422 B2ExxonMobil Technology and Engineering Company
- Process for the production of urea formaldehyde concentrate21 Oct 2025US 12,448,349 B2Topsoe A/S
- Process and system for producing product15 Jul 2025US 12,359,134 B2Iogen Corporation
- Process and apparatus for hydrogen production with low carbon dioxide levels8 Oct 2026US 2026/0307989 A1
- Production and/or regasification of bio-lng20 Aug 2026US 2026/0242672 A1Iogen Corporation
- Method for producing ammonia with reduced emissions and system thereof13 Aug 2026US 2026/0234011 A1Yara Clean Ammonia AS
- Systems and methods for processing biomass18 Jun 2026US 2026/0167868 A1CHAR Technologies Research Inc.
- Process and system for producing fuel2 Oct 2025US 2025/0304862 A1Iogen Corporation
Most cited
By later US patents
- Steam reformer with internal hydrogen purification533US 5,861,137 A1999
- Steam reformer with internal hydrogen purification269US 5,997,594 ANorthwest Power Systems, LLC · 1999
- Hydrogen producing fuel processing system236US 6,221,117 B1IdaTech, LLC · 2001
- Integrated flameless distributed combustion/steam reforming membrane reactor for hydrogen production and use thereof in zero emissions hybrid power system186US 6,821,501 B2Shell Oil Company · 2004
- Nanotechnology for engineering the performance of substances140US 6,531,704 B2NanoProducts Corporation · 2003