B01D 53/047
Pressure swing adsorption
B01D53/047 (Pressure swing adsorption) appears on 2,605 US grants and 2,517 published applications in this corpus.
Search patents in B01D- Granted patents
- 2,605
- Published applications
- 2,517
- Assignees
- 953
- Inventors
- 4,668
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 8 | 0 |
| 1978 | 7 | 0 |
| 1979 | 7 | 0 |
| 1980 | 8 | 0 |
| 1981 | 15 | 0 |
| 1982 | 15 | 0 |
| 1983 | 19 | 0 |
| 1984 | 27 | 0 |
| 1985 | 26 | 0 |
| 1986 | 17 | 0 |
| 1987 | 28 | 0 |
| 1988 | 41 | 0 |
| 1989 | 28 | 0 |
| 1990 | 31 | 0 |
| 1991 | 22 | 0 |
| 1992 | 35 | 0 |
| 1993 | 38 | 0 |
| 1994 | 24 | 0 |
| 1995 | 32 | 0 |
| 1996 | 49 | 0 |
| 1997 | 37 | 0 |
| 1998 | 40 | 0 |
| 1999 | 68 | 0 |
| 2000 | 71 | 0 |
| 2001 | 54 | 13 |
| 2002 | 68 | 54 |
| 2003 | 71 | 55 |
| 2004 | 41 | 42 |
| 2005 | 37 | 66 |
| 2006 | 29 | 70 |
| 2007 | 37 | 52 |
| 2008 | 44 | 68 |
| 2009 | 33 | 69 |
| 2010 | 76 | 73 |
| 2011 | 44 | 81 |
| 2012 | 58 | 101 |
| 2013 | 76 | 77 |
| 2014 | 64 | 74 |
| 2015 | 83 | 97 |
| 2016 | 78 | 122 |
| 2017 | 94 | 120 |
| 2018 | 108 | 144 |
| 2019 | 110 | 112 |
| 2020 | 106 | 118 |
| 2021 | 93 | 142 |
| 2022 | 101 | 165 |
| 2023 | 126 | 131 |
| 2024 | 98 | 165 |
| 2025 | 106 | 176 |
| 2026 | 69 | 130 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for direct air capture of water and CO26 Oct 2026US 12,752,234 B2Battelle Memorial Institute
- System and method embodiments for treating produced water using supercritical water desalination coupled with supercritical water oxidation6 Oct 2026US 12,753,101 B1Triad National Security, LLC
- Apparatus for producing hydrogen gas29 Sep 2026US 12,747,157 B2Hyundai Motor Company
- Steam methane reforming with process carbon dioxide capture and ammonia firing15 Sep 2026US 12,735,316 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- GIS-type zeolite15 Sep 2026US 12,735,323 B2Asahi Kasei Kabushiki Kaisha
- 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
- Co2 and h2o co-electrolyser system8 Oct 2026US 2026/0308775 A1Ecole Polytechnique Federale De Lausanne (Epfl)
- Co2 capture and hydrogen recovery from fuel cell anode off gas8 Oct 2026US 2026/0312104 A1Uop LLC
- Integration of fuel cell system and co2 capture unit for hydrogen production8 Oct 2026US 2026/0312105 A1Uop LLC
Most cited
By later US patents
- Variable conductance gas distribution apparatus and method473US 9,657,845 B2ASM IP Holding B. V. · 2017
- 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
- Rapid cycle pressure swing adsorption oxygen concentration method and apparatus193US 5,827,358 AImpact MST, Incorporation · 1998
- High capacity regenerable sorbent for removal of mercury from flue gas191US 6,719,828 B12004