B01D 2259/40086
By using a purge gas
Official title: by using a purge gas (B01D2259/4009 takes precedence)
B01D2259/40086 (By using a purge gas) appears on 512 US grants and 487 published applications in this corpus.
Search patents in B01D- Granted patents
- 512
- Published applications
- 487
- Assignees
- 354
- Inventors
- 1,313
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 2 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 13 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 7 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 8 | 0 |
| 1998 | 11 | 0 |
| 1999 | 13 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 4 |
| 2002 | 11 | 11 |
| 2003 | 16 | 17 |
| 2004 | 9 | 20 |
| 2005 | 16 | 26 |
| 2006 | 15 | 24 |
| 2007 | 18 | 19 |
| 2008 | 14 | 7 |
| 2009 | 16 | 17 |
| 2010 | 13 | 13 |
| 2011 | 11 | 12 |
| 2012 | 10 | 9 |
| 2013 | 8 | 9 |
| 2014 | 11 | 8 |
| 2015 | 8 | 13 |
| 2016 | 15 | 23 |
| 2017 | 14 | 36 |
| 2018 | 23 | 19 |
| 2019 | 18 | 19 |
| 2020 | 22 | 25 |
| 2021 | 18 | 31 |
| 2022 | 28 | 27 |
| 2023 | 20 | 22 |
| 2024 | 23 | 23 |
| 2025 | 9 | 29 |
| 2026 | 13 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High throughput moving panel direct air capture system6 Oct 2026US 12,752,238 B2Zero Carbon Systems, Inc.
- Atmospheric steam desorption for direct air capture18 Aug 2026US 12,708,870 B2Climeworks AG
- Air dryer device and air treatment device4 Aug 2026US 12,697,577 B2KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
- Method for removing CO2 from a CO2-containing stream28 Jul 2026US 12,691,402 B2Shell USA, Inc.
- Atmospheric water harvesting device and method28 Jul 2026US 12,691,406 B2Ahbstra Engineering Ltd
- Amine compound, amine composition, carbon dioxide absorbent, method for recovering carbon dioxide, and carbon dioxide separation and recovery device8 Oct 2026US 2026/0307005 A1Mitsubishi Gas Chemical Company, Inc.
- Atmospheric steam desorption for direct air capture1 Oct 2026US 2026/0295505 A1Climeworks AG
- Coated nonwoven article derived from porous polymeric fibers and methods thereof13 Aug 2026US 2026/0234865 A13M Innovative Properties Company
- Canister and Automotive Vehicle Provided With the Same13 Aug 2026US 2026/0235094 A1Aisan Kogyo Kabushiki Kaisha
- Twin chamber air dryer for a pneumatic system of a commercial vehicle13 Aug 2026US 2026/0235145 A1Zf Cv Systems Europe BV
Most cited
By later US patents
- Apparatus for adsorbing fuel vapor126US 4,386,947 ANippon Soken, Inc. · 1983
- Filtration device for use with a fuel vapor recovery system124US 6,599,350 B1Hi-Stat Manufacturing Co., Inc. · 2003
- Rotary valve assembly for pressure swing adsorption system118US 6,311,719 B1SeQual Technologies, Inc. · 2001
- Process for the separation/recovery of gases114US 6,179,900 B2GKSS-Forschungszentrum Geesthacht GmbH · 2001
- Rotary valve assembly for pressure swing adsorption system105US 6,712,087 B2SeQual Technologies, Inc. · 2004