B01D 21/2422
Vertically arranged feed points
Official title: {Vertically arranged feed points}
B01D21/2422 (Vertically arranged feed points) appears on 32 US grants and 26 published applications in this corpus.
Search patents in B01D- Granted patents
- 32
- Published applications
- 26
- Assignees
- 22
- Inventors
- 66
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 1 | 0 |
| 2013 | 2 | 2 |
| 2014 | 1 | 2 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 4 | 1 |
| 2018 | 1 | 2 |
| 2019 | 0 | 1 |
| 2020 | 3 | 3 |
| 2021 | 2 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 2 |
| 2025 | 2 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- System and method for efficient natural gas pretreatment13 Jan 2026US 12,523,422 B2CNX Resources Corporation
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- Sedimentation plate, sedimentation assembly, and sedimentation module4 Feb 2025US 12,214,300 B2Shandong Hotone Environmental Technology Co., Ltd.
- Overload protection chamber for fluid separation apparatus and system23 Apr 2024US 11,964,221 B2OSI Environmental LLC
- Apparatus and method for harnessing energy from a wellbore to perform multiple functions while reducing emissions4 Jun 2026US 2026/0153020 A1CNX Resources Corporation
- Method, apparatus, and system to optimize flocculation of solid particles in a settling vessel26 Mar 2026US 2026/0084080 A1
- Apparatus and method for three-phase separation at a well22 May 2025US 2025/0163791 A1CNX Resources Corporation
- Sedimentation plate, sedimentation assembly, and sedimentation module3 Oct 2024US 2024/0325944 A1Shandong Hotone Environmental Technology Co., Ltd.
- Overload protection chamber for fluid separation apparatus and system4 Jul 2024US 2024/0216832 A1OSI Environmental, LLC. (d/b/a/ Oil Skimmers, Inc.)
Most cited
By later US patents
- Separation apparatus and method71US 5,840,198 AInternational Fluid Separation Pty Ltd · 1998
- Liquid clarification system24US 4,192,746 A1980
- Separator employing an annular vertical feedwell with associated concentric annular baffle plate and method of using same to separate solids from liquids23US 4,278,541 AAmstar Corporation · 1981
- Flotation apparatus and process12US 6,217,777 B1AW Creative Technologies Limited · 2001
- Chevron clarifier9US 3,951,818 A1976