B01D 21/2494
Provided with means for the removal of gas
Official title: {provided with means for the removal of gas, e.g. noxious gas, air}
B01D21/2494 (Provided with means for the removal of gas) appears on 207 US grants and 173 published applications in this corpus.
Search patents in B01D- Granted patents
- 207
- Published applications
- 173
- Assignees
- 143
- Inventors
- 325
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 8 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 2 |
| 2002 | 2 | 3 |
| 2003 | 4 | 3 |
| 2004 | 4 | 8 |
| 2005 | 4 | 9 |
| 2006 | 3 | 4 |
| 2007 | 3 | 7 |
| 2008 | 6 | 2 |
| 2009 | 3 | 5 |
| 2010 | 3 | 4 |
| 2011 | 2 | 4 |
| 2012 | 6 | 8 |
| 2013 | 6 | 10 |
| 2014 | 9 | 13 |
| 2015 | 6 | 6 |
| 2016 | 7 | 9 |
| 2017 | 10 | 13 |
| 2018 | 8 | 11 |
| 2019 | 8 | 7 |
| 2020 | 14 | 11 |
| 2021 | 14 | 10 |
| 2022 | 12 | 5 |
| 2023 | 6 | 3 |
| 2024 | 2 | 5 |
| 2025 | 3 | 8 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Removal device15 Sep 2026US 12,734,466 B2Aalberts hfc B.V.
- Separator system and method19 May 2026US 12,631,076 B2
- Apparatus and method for three-phase separation at a well24 Feb 2026US 12,560,070 B2CNX Resources Corporation
- Foreign matter removal device17 Feb 2026US 12,551,905 B2Mitsubishi Electric Corporation
- Gas-liquid-solid separator14 Oct 2025US 12,441,642 B2Utah State University
- Cyclonic Separator System with a Bypass Conduit16 Jul 2026US 2026/0199911 A1
- Sand Separation System with Continuous Siphoned Sand Disposal16 Jul 2026US 2026/0201787 A1
- Centrifugal solids-liquid separator system19 Feb 2026US 2026/0048348 A1
- Natural Gas Capture From a Well Stream4 Sep 2025US 2025/0277434 A1Total Gas Resource Recovery, LLC
- Residential hydronic magnetic, sediment, and air separation device with maintenance indicator14 Aug 2025US 2025/0256223 A1Fluid Handling LLC
Most cited
By later US patents
- Method for separating components in well fluids77US 5,928,519 A1999
- Static deaeration conditioner for processing of bitumen froth65US 6,800,116 B2Suncor Energy Inc. · 2004
- Apparatus and method for separating components in well fluids56US 5,900,137 A1999
- Helical separator55US 6,036,749 APetroleo Brasileiro S.A. - Petrobras · 2000
- Fracturing material separator apparatus54US 6,214,092 B12001