B01D 21/2411
Having a tangential inlet
Official title: {having a tangential inlet}
B01D21/2411 (Having a tangential inlet) appears on 270 US grants and 236 published applications in this corpus.
Search patents in B01D- Granted patents
- 270
- Published applications
- 236
- Assignees
- 176
- Inventors
- 456
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 12 | 0 |
| 2000 | 9 | 0 |
| 2001 | 3 | 1 |
| 2002 | 6 | 2 |
| 2003 | 5 | 6 |
| 2004 | 5 | 11 |
| 2005 | 7 | 12 |
| 2006 | 6 | 7 |
| 2007 | 6 | 9 |
| 2008 | 7 | 6 |
| 2009 | 7 | 6 |
| 2010 | 2 | 7 |
| 2011 | 9 | 11 |
| 2012 | 8 | 5 |
| 2013 | 8 | 14 |
| 2014 | 11 | 12 |
| 2015 | 9 | 11 |
| 2016 | 6 | 7 |
| 2017 | 6 | 8 |
| 2018 | 8 | 14 |
| 2019 | 10 | 5 |
| 2020 | 11 | 17 |
| 2021 | 16 | 17 |
| 2022 | 5 | 12 |
| 2023 | 12 | 8 |
| 2024 | 8 | 10 |
| 2025 | 6 | 10 |
| 2026 | 7 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- High rate thickener and eductors therefor23 Jul 2026US 2026/0209097 A1Marmon Industrial Water LLC
- 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
- Apparatus and method for harnessing energy from a wellbore to perform multiple functions while reducing emissions4 Jun 2026US 2026/0153020 A1CNX Resources Corporation
Most cited
By later US patents
- Helical separator55US 6,036,749 APetroleo Brasileiro S.A. - Petrobras · 2000
- Apparatus and methods of separation of materials in an under-balanced drilling operation54US 6,328,118 B1Halliburton Energy Services.Inc. · 2001
- Non-chemical water treatment method and apparatus employing ionized air purification technologies51US 6,740,245 B2Enerox Technology LLC · 2004
- Method and installation for treating an untreated flow by simple sedimentation after ballasting with fine sand50US 6,010,631 AOmnium de Traitement et de Valorisation (OTV) · 2000
- Gravity clarifier44US 3,965,013 A1976