C01B 2203/0415
Purification by absorption in liquids
C01B2203/0415 (Purification by absorption in liquids) appears on 730 US grants and 918 published applications in this corpus.
Search patents in C01B- Granted patents
- 730
- Published applications
- 918
- Assignees
- 366
- Inventors
- 1,753
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 7 | 0 |
| 1980 | 9 | 0 |
| 1981 | 2 | 0 |
| 1982 | 10 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 10 | 0 |
| 1989 | 15 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 15 | 0 |
| 2001 | 8 | 2 |
| 2002 | 8 | 19 |
| 2003 | 10 | 6 |
| 2004 | 7 | 18 |
| 2005 | 6 | 15 |
| 2006 | 10 | 13 |
| 2007 | 5 | 19 |
| 2008 | 7 | 15 |
| 2009 | 7 | 36 |
| 2010 | 18 | 65 |
| 2011 | 35 | 65 |
| 2012 | 30 | 44 |
| 2013 | 38 | 40 |
| 2014 | 35 | 62 |
| 2015 | 41 | 42 |
| 2016 | 38 | 33 |
| 2017 | 28 | 29 |
| 2018 | 32 | 30 |
| 2019 | 29 | 32 |
| 2020 | 23 | 33 |
| 2021 | 21 | 26 |
| 2022 | 22 | 44 |
| 2023 | 32 | 74 |
| 2024 | 38 | 65 |
| 2025 | 26 | 60 |
| 2026 | 19 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Purge gas conditioning of NH3 plants15 Sep 2026US 12,735,325 B2Stamicarbon B. V.
- Converting natural gas to dimethyl ether8 Sep 2026US 12,729,174 B2Saudi Arabian Oil Company
- Process and plant for producing pure hydrogen by steam reforming with low carbon dioxide emissions25 Aug 2026US 12,715,766 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Maximizing syngas carbon utilization and conversion to biofuel28 Jul 2026US 12,692,155 B2Enerkem, Inc.
- Gas reformer for producing hydrogen16 Jun 2026US 12,655,020 B2Fluor Technologies Corporation
- Carbon neutral hydrogen production24 Sep 2026US 2026/0285681 A1Saudi Arabian Oil Company
- Nano particle deposition system and related methods10 Sep 2026US 2026/0265063 A1Bright Sand Industries, Inc.
- System for generation of blue hydrogen through natural gas reforming, carbon dioxide capture, carbon resource utilization, and reaction product storage, and method therefor3 Sep 2026US 2026/0257913 A1Lowcarbon Co., Ltd.
- Biogas feed for carbon monoxide production27 Aug 2026US 2026/0250588 A1Topsoe A/S
- Sorbent-enhanced processes for the reaction of fuel to produce hydrogen and related systems20 Aug 2026US 2026/0242220 A1Massachusetts Institute of Technology
Most cited
By later US patents
- Catalytic ceramic membrane steam-hydrocarbon reformer269US 5,229,102 AMedalert Corporation · 1993
- Methanol plant retrofit for acetic acid manufacture208US 6,232,352 B1Acetex limited · 2001
- Staged combustion of a low heating value fuel gas for driving a gas turbine166US 6,201,029 B1Marathon Oil Company · 2001
- Indirectly heated thermochemical reactor apparatus and processes143US 5,059,404 AManufacturing and Technology Conversion International, Inc. · 1991
- Catalytic ceramic membrane steam/hydrocarbon reformer128US 4,981,676 A1991