B01D 53/1425
Regeneration of liquid absorbents
Official title: {Regeneration of liquid absorbents}
B01D53/1425 (Regeneration of liquid absorbents) appears on 1,421 US grants and 1,880 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,421
- Published applications
- 1,880
- Assignees
- 697
- Inventors
- 3,357
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 9 | 0 |
| 1980 | 6 | 0 |
| 1981 | 14 | 0 |
| 1982 | 12 | 0 |
| 1983 | 9 | 0 |
| 1984 | 20 | 0 |
| 1985 | 17 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 12 | 0 |
| 1990 | 4 | 0 |
| 1991 | 6 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 0 |
| 2002 | 9 | 6 |
| 2003 | 9 | 4 |
| 2004 | 4 | 9 |
| 2005 | 3 | 7 |
| 2006 | 6 | 12 |
| 2007 | 5 | 22 |
| 2008 | 4 | 20 |
| 2009 | 17 | 27 |
| 2010 | 17 | 51 |
| 2011 | 28 | 75 |
| 2012 | 26 | 89 |
| 2013 | 48 | 96 |
| 2014 | 74 | 108 |
| 2015 | 63 | 116 |
| 2016 | 82 | 116 |
| 2017 | 74 | 97 |
| 2018 | 106 | 94 |
| 2019 | 80 | 81 |
| 2020 | 80 | 102 |
| 2021 | 83 | 109 |
| 2022 | 83 | 100 |
| 2023 | 78 | 117 |
| 2024 | 92 | 135 |
| 2025 | 78 | 168 |
| 2026 | 60 | 119 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Once through CO2 absorber with integrated ammonia slip mitigation and intercooling1 Sep 2026US 12,722,115 B2Nuovo Pignone Tecnologie Srl
- Carbon dioxide recovery system25 Aug 2026US 12,714,967 B2Mitsubishi Heavy Industries, Ltd.
- Multi-stage liquid desiccant dehumidification systems and methods25 Aug 2026US 12,716,597 B2Copeland Corporation
- Fluids, solids and heavy component removal from reclaimer process liquid streams18 Aug 2026US 12,708,872 B2Axens
- Methods for material activation with thermal energy storage system18 Aug 2026US 12,709,998 B2Rondo Energy, Inc.
- Method of extraction of a gaseous or vapor component from compressed air8 Oct 2026US 2026/0306997 A1Consiglio Nazionale Delle Ricerche
- Method for producing a deacidified fluid stream, apparatus for deacidifying a fluid stream and use of heat pumps for deacidifying a fluid stream8 Oct 2026US 2026/0306998 A1BASF SE
- 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
- Magnetically-driven phase separator1 Oct 2026US 2026/0295471 A1Honeywell International Inc.
Most cited
By later US patents
- Method and apparatus for extracting carbon dioxide from air125US 7,708,806 B2Global Research Technologies, LLC · 2010
- Rocks and aggregate, and methods of making and using the same102US 7,914,685 B2Calera Corporation · 2011
- Methods of sequestering CO299US 7,887,694 B2Calera Corporation · 2011
- Process for the removal of H.sub.2 S and CO.sub.2 from gaseous streams97US 4,091,073 AShell Oil Company · 1978
- Methods and systems for utilizing waste sources of metal oxides97US 7,754,169 B2Calera Corporation · 2010