B01D 53/14
Separation of gases or vapours: by absorption
Official title: by absorption
B01D53/14 (Separation of gases or vapours: by absorption) appears on 5,079 US grants and 5,734 published applications in this corpus.
Search patents in B01D- Granted patents
- 5,079
- Published applications
- 5,734
- Assignees
- 2,181
- Inventors
- 10,849
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 34 | 0 |
| 1977 | 34 | 0 |
| 1978 | 63 | 0 |
| 1979 | 38 | 0 |
| 1980 | 51 | 0 |
| 1981 | 66 | 0 |
| 1982 | 46 | 0 |
| 1983 | 62 | 0 |
| 1984 | 66 | 0 |
| 1985 | 67 | 0 |
| 1986 | 36 | 0 |
| 1987 | 37 | 0 |
| 1988 | 42 | 0 |
| 1989 | 60 | 0 |
| 1990 | 43 | 0 |
| 1991 | 36 | 0 |
| 1992 | 44 | 0 |
| 1993 | 30 | 0 |
| 1994 | 46 | 0 |
| 1995 | 47 | 0 |
| 1996 | 42 | 0 |
| 1997 | 44 | 0 |
| 1998 | 51 | 0 |
| 1999 | 54 | 0 |
| 2000 | 59 | 0 |
| 2001 | 62 | 16 |
| 2002 | 56 | 55 |
| 2003 | 63 | 52 |
| 2004 | 44 | 78 |
| 2005 | 33 | 56 |
| 2006 | 40 | 90 |
| 2007 | 32 | 83 |
| 2008 | 38 | 109 |
| 2009 | 53 | 128 |
| 2010 | 90 | 192 |
| 2011 | 102 | 246 |
| 2012 | 120 | 258 |
| 2013 | 194 | 315 |
| 2014 | 225 | 291 |
| 2015 | 197 | 292 |
| 2016 | 237 | 275 |
| 2017 | 223 | 253 |
| 2018 | 245 | 300 |
| 2019 | 257 | 301 |
| 2020 | 246 | 302 |
| 2021 | 242 | 282 |
| 2022 | 252 | 274 |
| 2023 | 219 | 349 |
| 2024 | 222 | 391 |
| 2025 | 238 | 437 |
| 2026 | 151 | 309 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 53/1456Removing acid components2,904
- B01D 53/1493Selection of liquid materials for use as absorbents1,718
- B01D 53/1425Regeneration of liquid absorbents1,421
- B01D 53/18Absorbing units1,378
- B01D 53/1418Recovery of products447
- B01D 53/1487Removing organic compounds438
- B01D 53/1406Multiple stage absorption370
- B01D 53/1412Controlling the absorption process303
All 9 subgroupsShow fewer
Recent patents
- CO2 recovery system and CO2 recovery method6 Oct 2026US 12,752,235 B2Mitsubishi Heavy Industries, Ltd.
- Gas-liquid contactor with packing for capturing carbon dioxide6 Oct 2026US 12,752,251 B2Carbon Engineering ULC
- Systems and methods for collecting fats, oils, and grease from updraft ventilators29 Sep 2026US 12,746,503 B1
- Method and apparatus for producing carbonate salts22 Sep 2026US 12,741,880 B2Nanomist Technologies Co., Ltd.
- Manufacturing method of chemical adsorbent for removing harmful gases, and apparatus thereof15 Sep 2026US 12,734,501 B2GTScien Co., Ltd.
- 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
- Process and apparatus for separating carbon dioxide from a flue gas stream8 Oct 2026US 2026/0306999 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- 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
Most cited
By later US patents
- Microcomponent assembly for efficient contacting of fluid191US 6,126,723 ABattelle Memorial Institute · 2000
- Remedial system: a pollution control device for utilizing and abating volatile organic compounds178US 8,776,734 B1Innovative Environmental Solutions, LLC · 2014
- 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