B01D 2252/50
Combinations of absorbents
B01D2252/50 (Combinations of absorbents) appears on 292 US grants and 417 published applications in this corpus.
Search patents in B01D- Granted patents
- 292
- Published applications
- 417
- Assignees
- 194
- Inventors
- 857
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 2 | 4 |
| 2011 | 0 | 9 |
| 2012 | 2 | 25 |
| 2013 | 12 | 24 |
| 2014 | 12 | 18 |
| 2015 | 9 | 33 |
| 2016 | 24 | 28 |
| 2017 | 30 | 43 |
| 2018 | 27 | 35 |
| 2019 | 32 | 31 |
| 2020 | 23 | 25 |
| 2021 | 22 | 21 |
| 2022 | 24 | 20 |
| 2023 | 18 | 26 |
| 2024 | 24 | 25 |
| 2025 | 18 | 30 |
| 2026 | 12 | 16 |
By publication year. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hybrid carbon dioxide removal systems4 Aug 2026US 12,697,582 B2AirMyne, Inc.
- Method of scavenging hydrogen sulfide from sour gas well using mineral oil nanoemulsions23 Jun 2026US 12,662,619 B1King Fahd University of Petroleum and Minerals
- Composition for carbon dioxide separation and method for separating carbon dioxide9 Jun 2026US 12,649,145 B2Tosoh Corporation
- Formulations and methods to remove non-acidic sulfur compounds from gas streams26 May 2026US 12,637,627 B2Baker Hughes Oilfield Operations LLC
- Compositions and methods for scavenging hydrogen sulfide26 May 2026US 12,637,628 B2Foremark Performance Chemicals
- Composite amine absorption liquid1 Oct 2026US 2026/0295512 A1Mitsubishi Heavy Industries, Ltd.
- Composition for carbon dioxide separation and method for separating carbon dioxide17 Sep 2026US 2026/0273505 A1Tosoh Corporation
- Compositions and Methods for Scavenging Hydrogen Sulfide10 Sep 2026US 2026/0265628 A1Foremark Performance Chemicals
- Method for separating an exhaust-gas mixture containing hydrogen chloride, hydrogen and chlorosilanes30 Jul 2026US 2026/0216635 A1Wacker Chemie AG
- Reducing consumption of sulfiding agent in hydroprocessing of biofeedstocks25 Jun 2026US 2026/0175163 A1ExxonMobil Technology and Engineering Company
Most cited
By later US patents
- Variable capacity multiple-leg packed separation column22US 9,480,947 B2Saudi Arabian Oil Company · 2016
- CO2 recovery system and CO2 absorption liquid21US 8,568,520 B2Kabushiki Kaisha Toshiba · 2013
- Desiccant-based air conditioning system19US 8,943,844 B2Ducool Ltd. · 2015
- CO2 removal from gas using ionic liquid absorbents17US 7,527,775 B2Chevron U.S.A.Inc. · 2009
- System and process for capture of H2S from gaseous process streams and process for regeneration of the capture agent17US 8,652,237 B2Battelle Memorial Institute · 2014