B01D 53/1493
Selection of liquid materials for use as absorbents
Official title: {Selection of liquid materials for use as absorbents}
B01D53/1493 (Selection of liquid materials for use as absorbents) appears on 1,718 US grants and 1,849 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,718
- Published applications
- 1,849
- Assignees
- 881
- Inventors
- 4,098
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 15 | 0 |
| 1978 | 32 | 0 |
| 1979 | 17 | 0 |
| 1980 | 26 | 0 |
| 1981 | 25 | 0 |
| 1982 | 30 | 0 |
| 1983 | 37 | 0 |
| 1984 | 39 | 0 |
| 1985 | 37 | 0 |
| 1986 | 15 | 0 |
| 1987 | 20 | 0 |
| 1988 | 25 | 0 |
| 1989 | 33 | 0 |
| 1990 | 25 | 0 |
| 1991 | 9 | 0 |
| 1992 | 16 | 0 |
| 1993 | 11 | 0 |
| 1994 | 14 | 0 |
| 1995 | 17 | 0 |
| 1996 | 8 | 0 |
| 1997 | 10 | 0 |
| 1998 | 12 | 0 |
| 1999 | 9 | 0 |
| 2000 | 17 | 0 |
| 2001 | 17 | 2 |
| 2002 | 10 | 10 |
| 2003 | 17 | 12 |
| 2004 | 6 | 13 |
| 2005 | 8 | 14 |
| 2006 | 13 | 20 |
| 2007 | 8 | 14 |
| 2008 | 6 | 20 |
| 2009 | 9 | 44 |
| 2010 | 30 | 71 |
| 2011 | 31 | 89 |
| 2012 | 44 | 81 |
| 2013 | 64 | 73 |
| 2014 | 51 | 81 |
| 2015 | 57 | 116 |
| 2016 | 65 | 110 |
| 2017 | 81 | 93 |
| 2018 | 92 | 105 |
| 2019 | 87 | 105 |
| 2020 | 67 | 92 |
| 2021 | 89 | 113 |
| 2022 | 84 | 91 |
| 2023 | 75 | 110 |
| 2024 | 73 | 116 |
| 2025 | 70 | 150 |
| 2026 | 53 | 104 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Once through CO2 absorber with integrated ammonia slip mitigation and intercooling1 Sep 2026US 12,722,115 B2Nuovo Pignone Tecnologie Srl
- Chemical additives for direct air carbon capture25 Aug 2026US 12,714,966 B2Halliburton Energy Services.Inc.
- Processes and systems for upgrading a hydrocarbon25 Aug 2026US 12,716,038 B2ExxonMobil Chemical Patents Inc.
- Using carbon dioxide from a direct air capture system as a low global warming car and industrial refrigerant25 Aug 2026US 12,716,620 B2AirMyne, Inc.
- Absorbent for Capturing Carbon Dioxide8 Oct 2026US 2026/0307000 A1Panasia Co., Ltd.
- Catalytic reactor and system for purification of carbon dioxide streams and methods of using the same8 Oct 2026US 2026/0307007 A1Oxy Low Carbon Ventures, LLC
- Amino acid based carbon dioxide capture catalyzed with three-dimensional graphene8 Oct 2026US 2026/0307044 A1University of Wyoming
- Carbon dioxide absorbent, method for recovering carbon dioxide, and apparatus for separating and recovering carbon dioxide8 Oct 2026US 2026/0307045 A1Mitsubishi Gas Chemical Company, Inc.
- High-efficiency carbonation reaction system and method for capturing carbon dioxide from flue gas continuously1 Oct 2026US 2026/0295508 A1National Atomic Research Institute
Most cited
By later US patents
- Removal of CO.sub.2 and/or H.sub.2 S and/or COS from gases containing these constituents172US 4,336,233 ABASF SE · 1982
- Process and amine-solvent absorbent for removing acidic gases from gaseous mixtures169US 4,112,051 AExxon Research & Engineering Co. · 1978
- Process for removing carbon dioxide containing acidic gases from gaseous mixtures using aqueous amine scrubbing solutions165US 4,112,052 AExxon Research & Engineering Co. · 1978
- Composition and method for sweetening hydrocarbons161US 4,978,512 AQuaker Chemical Corporation · 1990
- Continuous carbon dioxide and water removal system138US 5,281,254 AUnited Technologies Corporation · 1994