B01D 2259/40039
With three sub-steps
Official title: with three sub-steps
B01D2259/40039 (With three sub-steps) appears on 25 US grants and 25 published applications in this corpus.
Search patents in B01D- Granted patents
- 25
- Published applications
- 25
- Assignees
- 15
- Inventors
- 72
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 2 | 2 |
| 2011 | 2 | 0 |
| 2012 | 0 | 2 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 3 |
| 2017 | 0 | 2 |
| 2018 | 3 | 0 |
| 2019 | 2 | 3 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
| 2022 | 1 | 3 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pressure swing adsorption apparatus for high purity hydrogen purification from ammonia decomposition and hydrogen purification method using the same4 Aug 2026US 12,697,581 B2Korea Institute of Energy Research
- High recovery process for purification of multicomponent gases30 Jun 2026US 12,667,803 B2Praxair Technology, Inc.
- Three-product pressure swing adsorption system16 Jul 2024US 12,036,505 B2Uop LLC
- System and method for pressure swing adsorption26 Dec 2023US 11,850,545 B2Hyundai Motor Company
- High recovery process for purification of multicomponent gases22 Aug 2023US 11,731,075 B2Praxair Technology, Inc.
- Pressure swing adsorption apparatus for high purity hydrogen purification from ammonia decomposition and hydrogen purification method using the same2 Jan 2025US 2025/0001352 A1Korea Institute of Energy Research
- Three-product pressure swing adsorption system12 Sep 2024US 2024/0299875 A1Uop LLC
- High recovery process for purification of multicomponent gases26 Oct 2023US 2023/0338886 A1Praxair Technology, Inc.
- Three-product pressure swing adsorption system29 Sep 2022US 2022/0305427 A1Uop LLC
- System and method for pressure swing adsorption31 Mar 2022US 2022/0096994 A1Hyundai Motor Company
Most cited
By later US patents
- Indexing rotary dual valve for pressure swing adsorption systems70US 7,276,107 B2Praxair Technology, Inc. · 2007
- PSA pressure measurement and control system63US 7,674,319 B2H2Gen Innovations, Inc. · 2010
- Separation of gas mixtures including hydrogen37US 5,112,590 AThe BOC Group, Inc. · 1992
- Process for providing a feed gas for a chemical reaction and for the separation of a gaseous reaction product28US 4,280,824 ALinde Aktiengesellschaft · 1981
- Six adsorber pressure swing adsorption process25US 4,834,780 ALinde Aktiengesellschaft · 1989