B01D 53/261
By adsorption
Official title: {by adsorption}
B01D53/261 (By adsorption) appears on 2,026 US grants and 1,935 published applications in this corpus.
Search patents in B01D- Granted patents
- 2,026
- Published applications
- 1,935
- Assignees
- 1,090
- Inventors
- 4,370
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 10 | 0 |
| 1978 | 7 | 0 |
| 1979 | 7 | 0 |
| 1980 | 9 | 0 |
| 1981 | 13 | 0 |
| 1982 | 11 | 0 |
| 1983 | 17 | 0 |
| 1984 | 17 | 0 |
| 1985 | 19 | 0 |
| 1986 | 16 | 0 |
| 1987 | 25 | 0 |
| 1988 | 25 | 0 |
| 1989 | 20 | 0 |
| 1990 | 29 | 0 |
| 1991 | 19 | 0 |
| 1992 | 32 | 0 |
| 1993 | 29 | 0 |
| 1994 | 19 | 0 |
| 1995 | 24 | 0 |
| 1996 | 32 | 0 |
| 1997 | 51 | 0 |
| 1998 | 52 | 0 |
| 1999 | 63 | 0 |
| 2000 | 50 | 0 |
| 2001 | 44 | 12 |
| 2002 | 50 | 37 |
| 2003 | 48 | 38 |
| 2004 | 39 | 61 |
| 2005 | 30 | 64 |
| 2006 | 37 | 55 |
| 2007 | 35 | 47 |
| 2008 | 33 | 41 |
| 2009 | 31 | 49 |
| 2010 | 42 | 38 |
| 2011 | 30 | 45 |
| 2012 | 25 | 54 |
| 2013 | 43 | 59 |
| 2014 | 54 | 64 |
| 2015 | 36 | 67 |
| 2016 | 61 | 77 |
| 2017 | 55 | 106 |
| 2018 | 72 | 95 |
| 2019 | 86 | 103 |
| 2020 | 97 | 99 |
| 2021 | 71 | 108 |
| 2022 | 86 | 107 |
| 2023 | 92 | 123 |
| 2024 | 66 | 130 |
| 2025 | 97 | 135 |
| 2026 | 64 | 121 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Dehumidification unit and desiccant drum therein29 Sep 2026US 12,747,872 B2Trane International Inc.
- Intelligent drying device for transformer15 Sep 2026US 12,734,478 B2Fortune Electric Co., Ltd.
- Adsorption dryer and method for operating adsorption dryer15 Sep 2026US 12,734,479 B2Kobelco Compressors Corporation
- Systems and methods for optimizing carbon dioxide capture using water vapor adsorption8 Oct 2026US 2026/0306991 A1GE Vernova Infrastructure Technology LLC
- Direct air capture of carbon dioxide with nanofluidic flows8 Oct 2026US 2026/0307002 A1National Technology & Engineering Solutions of Sandia, LLC
- Adsorbent filter assembly1 Oct 2026US 2026/0295488 A1Donaldson Company, Inc.
- Use of closed or semi-closed loop regeneration of molecular sieve in dehydration driers using nitrogen or process gases in alcohol to olefins processes1 Oct 2026US 2026/0295506 A1Uop LLC
- Dehumidification apparatus, hydrogen production equipment, and method for operating dehumidification apparatus1 Oct 2026US 2026/0295515 A1Mitsubishi Heavy Industries, Ltd.
Most cited
By later US patents
- Portable oxygen concentration system and method of using the same310US 6,651,658 B1SeQual Technologies, Inc. · 2003
- Portable oxygen concentration system and method of using the same223US 6,691,702 B2SeQual Technologies, Inc. · 2004
- High frequency pressure swing adsorption186US 6,176,897 B1Questor Industries Inc. · 2001
- Portable oxygen concentration system and method of using the same182US 6,629,525 B2SeQual Technologies, Inc. · 2003
- Rotary pressure swing adsorption apparatus181US 6,406,523 B1QuestAir Technologies Inc. · 2002