B01D 2253/00
Adsorbents used in seperation treatment of gases and vapours
B01D2253/00 (Adsorbents used in seperation treatment of gases and vapours) appears on 7,010 US grants and 7,884 published applications in this corpus.
Search patents in B01D- Granted patents
- 7,010
- Published applications
- 7,884
- Assignees
- 3,080
- Inventors
- 15,530
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 28 | 0 |
| 1977 | 31 | 0 |
| 1978 | 17 | 0 |
| 1979 | 20 | 0 |
| 1980 | 20 | 0 |
| 1981 | 32 | 0 |
| 1982 | 28 | 0 |
| 1983 | 26 | 0 |
| 1984 | 34 | 0 |
| 1985 | 38 | 0 |
| 1986 | 33 | 0 |
| 1987 | 36 | 0 |
| 1988 | 55 | 0 |
| 1989 | 50 | 0 |
| 1990 | 45 | 0 |
| 1991 | 34 | 0 |
| 1992 | 68 | 0 |
| 1993 | 59 | 0 |
| 1994 | 61 | 0 |
| 1995 | 55 | 0 |
| 1996 | 76 | 0 |
| 1997 | 84 | 0 |
| 1998 | 114 | 0 |
| 1999 | 144 | 0 |
| 2000 | 125 | 0 |
| 2001 | 124 | 43 |
| 2002 | 154 | 145 |
| 2003 | 171 | 166 |
| 2004 | 116 | 149 |
| 2005 | 92 | 204 |
| 2006 | 100 | 197 |
| 2007 | 104 | 175 |
| 2008 | 116 | 199 |
| 2009 | 116 | 210 |
| 2010 | 171 | 291 |
| 2011 | 145 | 285 |
| 2012 | 207 | 287 |
| 2013 | 267 | 288 |
| 2014 | 218 | 299 |
| 2015 | 265 | 354 |
| 2016 | 262 | 359 |
| 2017 | 293 | 412 |
| 2018 | 320 | 468 |
| 2019 | 375 | 439 |
| 2020 | 340 | 400 |
| 2021 | 301 | 419 |
| 2022 | 311 | 400 |
| 2023 | 326 | 436 |
| 2024 | 310 | 441 |
| 2025 | 305 | 460 |
| 2026 | 188 | 358 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filter unit with a filter block, a damping layer and a housing, and process of manufacturing such a filter unit6 Oct 2026US 12,752,136 B2Dräger Safety AG & Co. KGaA
- Adsorbent bed with increased hydrothermal stability6 Oct 2026US 12,752,233 B2BASF SE
- System and method for direct air capture of water and CO26 Oct 2026US 12,752,234 B2Battelle Memorial Institute
- High throughput moving panel direct air capture system6 Oct 2026US 12,752,238 B2Zero Carbon Systems, Inc.
- Air conditioning and filtration system29 Sep 2026US 12,746,502 B2Work Air Technologies Pty Ltd
- Polysiloxane, method for its production and deodorant comprising it8 Oct 2026US 2026/0306689 A1Sagami Chemical Research Institute
- Automotive air filters with hydrocarbon-absorbing media8 Oct 2026US 2026/0306983 A1
- Method for treating a fluid, fluid discharge device for a fluid and associated system8 Oct 2026US 2026/0306992 A1
- Gas separation method, method for producing purified gas, and gas separation apparatus8 Oct 2026US 2026/0306996 A1Asahi Kasei Kabushiki Kaisha
- Amine compound, amine composition, carbon dioxide absorbent, method for recovering carbon dioxide, and carbon dioxide separation and recovery device8 Oct 2026US 2026/0307005 A1Mitsubishi Gas Chemical Company, Inc.
Most cited
By later US patents
- Abatement of effluent from chemical vapor deposition processes using ligand exchange resistant metal-organic precursor solutions401US 6,500,487 B1Advanced Technology Materials, Inc. · 2002
- Abatement of effluents from chemical vapor deposition processes using organometallic source reagents392US 6,749,671 B2Advanced Technology Materials, Inc. · 2004
- Method of and apparatus for purifying reduced pressure process chambers388US 6,135,460 ATexas Instruments Incorporated · 2000
- Abatement of effluent from chemical vapor deposition processes using ligand exchange resistant metal-organic precursor solutions386US 6,833,024 B2Adanced Technology Materials, Inc. · 2004
- Portable oxygen concentration system and method of using the same310US 6,651,658 B1SeQual Technologies, Inc. · 2003