B01D 21/2405
Feed mechanisms for settling tanks
Official title: {Feed mechanisms for settling tanks}
B01D21/2405 (Feed mechanisms for settling tanks) appears on 894 US grants and 616 published applications in this corpus.
Search patents in B01D- Granted patents
- 894
- Published applications
- 616
- Assignees
- 507
- Inventors
- 1,419
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 7 | 0 |
| 1978 | 6 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 11 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 9 | 0 |
| 1988 | 7 | 0 |
| 1989 | 11 | 0 |
| 1990 | 5 | 0 |
| 1991 | 12 | 0 |
| 1992 | 10 | 0 |
| 1993 | 5 | 0 |
| 1994 | 14 | 0 |
| 1995 | 15 | 0 |
| 1996 | 25 | 0 |
| 1997 | 35 | 0 |
| 1998 | 44 | 0 |
| 1999 | 41 | 0 |
| 2000 | 36 | 0 |
| 2001 | 28 | 9 |
| 2002 | 24 | 21 |
| 2003 | 30 | 29 |
| 2004 | 26 | 26 |
| 2005 | 27 | 29 |
| 2006 | 15 | 20 |
| 2007 | 16 | 24 |
| 2008 | 10 | 12 |
| 2009 | 21 | 20 |
| 2010 | 14 | 13 |
| 2011 | 13 | 29 |
| 2012 | 14 | 10 |
| 2013 | 20 | 36 |
| 2014 | 21 | 32 |
| 2015 | 27 | 34 |
| 2016 | 17 | 28 |
| 2017 | 29 | 21 |
| 2018 | 32 | 35 |
| 2019 | 24 | 21 |
| 2020 | 24 | 35 |
| 2021 | 33 | 36 |
| 2022 | 19 | 24 |
| 2023 | 22 | 19 |
| 2024 | 18 | 23 |
| 2025 | 14 | 16 |
| 2026 | 15 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus and process for separating components of a multiphase hydrocarbon stream15 Sep 2026US 12,734,531 B2Omv Downstream GmbH
- Methods and systems for organic recovery in solvent extraction8 Sep 2026US 12,728,370 B2Freeport Minerals Corporation
- Paint sludge separator tank using froth floatation14 Jul 2026US 12,678,715 B2Giffin, Inc.
- Device and method for cleaning water accruing from drilling in the ground2 Jun 2026US 12,643,060 B2Rototec AB
- Waste oil handling apparatus26 May 2026US 12,636,596 B2
- System for cleaning equipment intended to be placed in a solid/liquid separation settler, and associated installation and method1 Oct 2026US 2026/0295472 A1Suez International
- Systems for Grit Removal1 Oct 2026US 2026/0295473 A1
- Methods and systems for organic recovery in solvent extraction1 Oct 2026US 2026/0295474 A1Freeport Minerals Corporation
- Settling assembly for decanting an effluent3 Sep 2026US 2026/0257153 A1Suez International
- Scum removal system in sewage treatment plant30 Jul 2026US 2026/0217571 A1Utsunomiya Kogyo Co., Ltd.
Most cited
By later US patents
- Enhanced yield platelet collection systems and methods216US 5,370,802 ABaxter International Inc. · 1994
- Centrifugation pheresis system202US 4,834,890 ABaxter International Inc. · 1989
- Time based interface detection systems for blood processing apparatus186US 5,316,667 ABaxter International Inc. · 1994
- Centrifugation system having an interface detection surface161US 5,322,620 ABaxter International Inc. · 1994
- Centrifugation pheresis system135US 5,494,578 ABaxter International Inc. · 1996