B01D 2259/40047
With three sub-steps
Official title: with three sub-steps
B01D2259/40047 (With three sub-steps) appears on 16 US grants and 11 published applications in this corpus.
Search patents in B01D- Granted patents
- 16
- Published applications
- 11
- Assignees
- 10
- Inventors
- 50
- Latest grant
- 15 Jul 2025
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 | 0 | 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 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- 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
- Three-product pressure swing adsorption system16 Jul 2024US 12,036,505 B2Uop LLC
- Intensified pressure swing adsorption system and process cycles21 Feb 2023US 11,583,798 B2Praxair Technology, Inc.
- Method of pressure swing adsorption with regulation20 Feb 2018US 9,895,646 B2L'Air Liquide, SociétéAnonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
- Large scale pressure swing adsorption systems having process cycles operating in normal and turndown modes30 Jul 2013US 8,496,733 B2Praxair Technology, Inc.
- Three-product pressure swing adsorption system12 Sep 2024US 2024/0299875 A1Uop LLC
- 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
- Three-product pressure swing adsorption system29 Sep 2022US 2022/0305427 A1Uop LLC
- Intensified pressure swing adsorption system and process cycles24 Jun 2021US 2021/0187432 A1Praxair Technology, Inc.
- Method of pressure swing adsorption with regulation1 Sep 2016US 2016/0250580 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Recovery of volatile organic compounds from gas streams51US 5,779,768 AAir Products and Chemicals, Inc. · 1998
- Pressure swing adsorption process and system utilizing two product storage tanks51US 6,096,115 AAir Products and Chemicals, Inc. · 2000
- Adsorption process for the separation of gaseous mixtures43US 4,299,596 ALinde Aktiengesellschaft · 1981
- Separation of gas mixtures including hydrogen37US 5,112,590 AThe BOC Group, Inc. · 1992
- Pressure swing adsorption process for co-producing nitrogen and oxygen25US 6,527,830 B1Praxair Technology, Inc. · 2003