B01D 2259/40067
Seven
B01D2259/40067 (Seven) appears on 94 US grants and 28 published applications in this corpus.
Search patents in B01D- Granted patents
- 94
- Published applications
- 28
- Assignees
- 37
- Inventors
- 195
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 9 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 9 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 3 |
| 2003 | 2 | 1 |
| 2004 | 0 | 2 |
| 2005 | 2 | 3 |
| 2006 | 1 | 2 |
| 2007 | 1 | 1 |
| 2008 | 4 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 2 |
| 2014 | 2 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 1 | 3 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for mobile pressure swing adsorption oxygen production device30 Dec 2025US 12,508,534 B2Chengdu Yingchen Technology Co., Ltd
- Method for regulating a unit for separating a gas stream15 Jul 2025US 12,357,939 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Extremely large pressure swing adsorption processes for flue gas treatment8 Aug 2023US 11,717,786 B2University of South Carolina
- System and method for generating hydrogen through ammonia adsorption23 May 2023US 11,655,147 B2Hyundai Motor Company
- Adsorption process for treating natural gas15 Jun 2021US 11,034,903 B2Uop LLC
- Method for Mobile Pressure Swing Adsorption Oxygen Production Device22 Feb 2024US 2024/0058744 A1Chengdu Yingchen Technology Co., Ltd
- Method for regulating a unit for separating a gas stream25 May 2023US 2023/0158444 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- System and method for generating hydrogen through ammonia adsorption21 Apr 2022US 2022/0119250 A1Hyundai Motor Company
- Extremely Large Pressure Swing Adsorption Processes for Flue Gas Treatment11 Nov 2021US 2021/0346837 A1University of South Carolina
- Multi-Bed Rapid Cycle Kinetic PSA20 Feb 2020US 2020/0054987 A1Air Products and Chemicals, Inc.
Most cited
By later US patents
- Methods and apparatuses for gas separation by pressure swing adsorption with partial gas product feed to fuel cell power source139US 6,866,950 B2QuestAir Technologies Inc. · 2005
- Layered manifold pressure swing adsorption device and method106US 6,565,635 B2QuestAir Technologies Inc. · 2003
- Separation of gas mixtures including hydrogen88US 5,234,472 AThe BOC Group, Inc. · 1993
- Adsorbents for rapid cycle pressure swing adsorption processes83US 7,404,846 B2Air Products and Chemicals, Inc. · 2008
- Process and unit for producing oxygen by adsorption with a short cycle81US 6,171,371 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 2001