B01D 2259/40005
Using rotary valves
Official title: using rotary valves
B01D2259/40005 (Using rotary valves) appears on 168 US grants and 123 published applications in this corpus.
Search patents in B01D- Granted patents
- 168
- Published applications
- 123
- Assignees
- 95
- Inventors
- 313
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 3 |
| 2002 | 6 | 13 |
| 2003 | 11 | 8 |
| 2004 | 5 | 8 |
| 2005 | 8 | 13 |
| 2006 | 8 | 11 |
| 2007 | 9 | 10 |
| 2008 | 5 | 3 |
| 2009 | 5 | 9 |
| 2010 | 12 | 4 |
| 2011 | 5 | 4 |
| 2012 | 1 | 3 |
| 2013 | 2 | 3 |
| 2014 | 4 | 5 |
| 2015 | 2 | 2 |
| 2016 | 5 | 1 |
| 2017 | 1 | 1 |
| 2018 | 4 | 4 |
| 2019 | 3 | 3 |
| 2020 | 7 | 4 |
| 2021 | 1 | 3 |
| 2022 | 1 | 0 |
| 2023 | 1 | 2 |
| 2024 | 1 | 1 |
| 2025 | 0 | 3 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pressure swing adsorption device and rotary valve thereof1 Sep 2026US 12,722,114 B2China Petroleum & Chemical Corporation
- 2×7 rotary valve19 May 2026US 12,631,259 B2Air Products and Chemicals, Inc.
- Biogas processing systems and methods24 Mar 2026US 12,582,936 B2Ivys Adsorption Inc.
- Gas adsorption and separation apparatus and applications thereof16 Jan 2024US 11,872,517 B2Shanghai Shencheng Environmental Protection Equipment & Engineering Co., Ltd.
- Method to separate a gas mixture on a large scale using reversible blowers2 May 2023US 11,638,896 B2Adsorptech Inc.
- Rotary valve with seal sheet for high purity applications10 Sep 2026US 2026/0266385 A1Uop LLC
- Rotary valve with adjustable sealing pressure and devices comprising such valves21 May 2026US 2026/0139745 A1Quadrogen Power Systems, Inc.
- Portable modular rotary true moving bed for gas separation and method thereof15 May 2025US 2025/0153091 A1Tata Consultancy Services Limited
- Adsorbent selection method, pressure swing adsorption method, and system therefor27 Feb 2025US 2025/0065256 A1China Petroleum & Chemical Corporation
- 2x7 Rotary Valve2 Jan 2025US 2025/0003507 A1Air Products and Chemicals, Inc.
Most cited
By later US patents
- 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
- High efficiency continuous separation process212US 4,402,832 AUop LLC · 1983
- High frequency pressure swing adsorption186US 6,176,897 B1Questor Industries Inc. · 2001
- Portable oxygen concentration system and method of using the same182US 6,629,525 B2SeQual Technologies, Inc. · 2003