B01D 2259/40069
Eight
B01D2259/40069 (Eight) appears on 86 US grants and 42 published applications in this corpus.
Search patents in B01D- Granted patents
- 86
- Published applications
- 42
- Assignees
- 30
- Inventors
- 163
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 2 |
| 2004 | 3 | 2 |
| 2005 | 2 | 4 |
| 2006 | 0 | 2 |
| 2007 | 2 | 6 |
| 2008 | 1 | 3 |
| 2009 | 4 | 2 |
| 2010 | 5 | 2 |
| 2011 | 5 | 1 |
| 2012 | 1 | 3 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 2 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 3 |
| 2024 | 1 | 2 |
| 2025 | 1 | 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
- Portable pressure swing adsorption method and system for fuel gas conditioning16 Jan 2024US 11,872,518 B2Coldstream Energy IP, LLC
- Portable pressure swing adsorption method and system for fuel gas conditioning14 Feb 2023US 11,577,191 B1Coldstream Energy IP, LLC
- Temperature-vacuum swing adsorption process for capture of CO219 Oct 2021US 11,148,092 B2University of South Carolina
- Multi-bed rapid cycle kinetic PSA18 Aug 2020US 10,744,450 B2Air Products and Chemicals, Inc.
- Portable pressure swing adsorption method and system for low flow rate gas processing22 Aug 2024US 2024/0278167 A1Coldstream Energy IP, LLC
- Method for Mobile Pressure Swing Adsorption Oxygen Production Device22 Feb 2024US 2024/0058744 A1Chengdu Yingchen Technology Co., Ltd
- Portable pressure swing adsorption method and system for fuel gas conditioning30 Mar 2023US 2023/0101201 A1Coldstream Energy IP, LLC
- Portable pressure swing adsorption method and system for fuel gas conditioning16 Mar 2023US 2023/0082278 A1Coldstream Energy IP, LLC
- Plant and method for the abatement of undesired polluting components contained in biogas to be treated2 Mar 2023US 2023/0066671 A1AB Impianti Srl
Most cited
By later US patents
- Separation of a sour syngas stream136US 8,268,044 B2Air Products and Chemicals, Inc. · 2012
- Life support oxygen concentrator126US 6,514,319 B2QuestAir Technologies Inc. · 2003
- Layered manifold pressure swing adsorption device and method106US 6,565,635 B2QuestAir Technologies Inc. · 2003
- Weight-optimized portable oxygen concentrator104US 7,279,029 B2Air Products and Chemicals, Inc. · 2007
- PSA multicomponent separation utilizing tank equalization101US 4,816,039 AThe BOC Group, Inc. · 1989