B01D 21/265
By using a vortex inducer or vortex guide
Official title: {by using a vortex inducer or vortex guide, e.g. coil (B01D21/0054 takes precedence)}
B01D21/265 (By using a vortex inducer or vortex guide) appears on 161 US grants and 176 published applications in this corpus.
Search patents in B01D- Granted patents
- 161
- Published applications
- 176
- Assignees
- 129
- Inventors
- 324
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 3 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 4 |
| 2006 | 3 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 5 |
| 2009 | 1 | 9 |
| 2010 | 1 | 3 |
| 2011 | 2 | 2 |
| 2012 | 3 | 7 |
| 2013 | 1 | 4 |
| 2014 | 5 | 9 |
| 2015 | 5 | 10 |
| 2016 | 9 | 4 |
| 2017 | 8 | 4 |
| 2018 | 7 | 19 |
| 2019 | 9 | 16 |
| 2020 | 14 | 19 |
| 2021 | 19 | 21 |
| 2022 | 12 | 9 |
| 2023 | 8 | 10 |
| 2024 | 13 | 6 |
| 2025 | 4 | 5 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Hydrodynamic separator with optimal microchannel length13 Aug 2026US 2026/0233126 A1Donaldson Company, Inc.
- Method and system for treating fluid30 Jul 2026US 2026/0216738 A1Vortex Corporation
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Most cited
By later US patents
- Systems and methods for particle focusing in microchannels185US 8,186,913 B2The General Hospital Corporation · 2012
- Integrated chemical processing apparatus and processes for the preparation thereof127US 5,690,763 AE. I. Du Pont de Nemours and Company · 1997
- Method for separating components in well fluids77US 5,928,519 A1999
- Vortex chamber separator56US 4,895,582 A1990
- Apparatus and method for separating components in well fluids56US 5,900,137 A1999