B01D 21/10
Settling tanks with multiple outlets for the separated liquids
Official title: {Settling tanks with multiple outlets for the separated liquids}
B01D21/10 (Settling tanks with multiple outlets for the separated liquids) appears on 330 US grants and 167 published applications in this corpus.
Search patents in B01D- Granted patents
- 330
- Published applications
- 167
- Assignees
- 212
- Inventors
- 597
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 14 | 0 |
| 1978 | 13 | 0 |
| 1979 | 14 | 0 |
| 1980 | 9 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 9 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 7 | 0 |
| 1987 | 9 | 0 |
| 1988 | 11 | 0 |
| 1989 | 11 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 10 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 3 |
| 2003 | 5 | 1 |
| 2004 | 0 | 3 |
| 2005 | 1 | 7 |
| 2006 | 7 | 5 |
| 2007 | 3 | 8 |
| 2008 | 3 | 2 |
| 2009 | 3 | 2 |
| 2010 | 0 | 4 |
| 2011 | 3 | 5 |
| 2012 | 4 | 7 |
| 2013 | 9 | 6 |
| 2014 | 4 | 12 |
| 2015 | 3 | 5 |
| 2016 | 5 | 12 |
| 2017 | 10 | 11 |
| 2018 | 14 | 15 |
| 2019 | 9 | 8 |
| 2020 | 11 | 15 |
| 2021 | 9 | 9 |
| 2022 | 8 | 7 |
| 2023 | 8 | 7 |
| 2024 | 9 | 6 |
| 2025 | 5 | 5 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Waste oil handling apparatus26 May 2026US 12,636,596 B2
- Separator system and method19 May 2026US 12,631,076 B2
- Sand-manure liquid separation plant, a use of the plant, and a method of using the plant24 Feb 2026US 12,558,637 B2Stjernholm A/S
- Methods and apparatus for treatment and purification of wastewater9 Sep 2025US 12,410,084 B2Rio Resources LLC
- Neutralization/water separation tank for esterified product and neutralization/water separation method for esterified product24 Jun 2025US 12,337,262 B2LG Chem.Ltd.
- Scum removal system in sewage treatment plant30 Jul 2026US 2026/0217571 A1Utsunomiya Kogyo Co., Ltd.
- Sand-manure liquid separation plant, a use of the plant, and a method of using the plant12 Mar 2026US 2026/0070004 A1Stjernholm A/S
- Sand-manure liquid separation plant, a use of the plant, and a method of using the plant2 Oct 2025US 2025/0303325 A1Stjernholm A/S
- Neutralization/water separation tank for esterified product and neutralization/water separation method for esterified product14 Aug 2025US 2025/0256221 A1LG Chem.Ltd.
- Continuous recirculation for separation of fluids produced during drill out and flow back17 Jul 2025US 2025/0230719 A1Cp Energy Services, LLC
Most cited
By later US patents
- Trailer mounted mobile apparatus for dewatering and recovering formation sand109US 7,240,681 B22007
- Apparatus for washing drill cuttings103US 4,546,783 AFlo Trend Shares, Inc. · 1985
- Reversible filter element87US 5,645,718 AParker-Hannifin Corporation · 1997
- Apparatus and method for separation of solids from liquid82US 5,814,230 A1998
- Method for separating components in well fluids77US 5,928,519 A1999