B01D 21/02
Settling tanks with single outlets for the separated liquid
Official title: Settling tanks {with single outlets for the separated liquid}
B01D21/02 (Settling tanks with single outlets for the separated liquid) appears on 966 US grants and 602 published applications in this corpus.
Search patents in B01D- Granted patents
- 966
- Published applications
- 602
- Assignees
- 581
- Inventors
- 1,674
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 25 | 0 |
| 1977 | 17 | 0 |
| 1978 | 21 | 0 |
| 1979 | 23 | 0 |
| 1980 | 21 | 0 |
| 1981 | 16 | 0 |
| 1982 | 16 | 0 |
| 1983 | 14 | 0 |
| 1984 | 17 | 0 |
| 1985 | 8 | 0 |
| 1986 | 10 | 0 |
| 1987 | 16 | 0 |
| 1988 | 14 | 0 |
| 1989 | 12 | 0 |
| 1990 | 20 | 0 |
| 1991 | 28 | 0 |
| 1992 | 18 | 0 |
| 1993 | 13 | 0 |
| 1994 | 20 | 0 |
| 1995 | 21 | 0 |
| 1996 | 23 | 0 |
| 1997 | 24 | 0 |
| 1998 | 26 | 0 |
| 1999 | 16 | 0 |
| 2000 | 20 | 0 |
| 2001 | 18 | 6 |
| 2002 | 18 | 20 |
| 2003 | 27 | 24 |
| 2004 | 24 | 43 |
| 2005 | 29 | 29 |
| 2006 | 22 | 33 |
| 2007 | 27 | 34 |
| 2008 | 13 | 17 |
| 2009 | 22 | 24 |
| 2010 | 16 | 18 |
| 2011 | 16 | 37 |
| 2012 | 17 | 17 |
| 2013 | 21 | 33 |
| 2014 | 22 | 26 |
| 2015 | 12 | 32 |
| 2016 | 24 | 13 |
| 2017 | 18 | 21 |
| 2018 | 22 | 24 |
| 2019 | 21 | 12 |
| 2020 | 20 | 30 |
| 2021 | 26 | 24 |
| 2022 | 23 | 20 |
| 2023 | 19 | 22 |
| 2024 | 10 | 18 |
| 2025 | 11 | 15 |
| 2026 | 9 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Removal device15 Sep 2026US 12,734,466 B2Aalberts hfc B.V.
- Plant and method for recycling and filtering rolling oil1 Sep 2026US 12,722,104 B2Fives Dms
- Plate assembly and method of manufacturing for use in water treatment14 Jul 2026US 12,678,714 B2Jim Myers & Sons, Inc.
- Device and method for cleaning water accruing from drilling in the ground2 Jun 2026US 12,643,060 B2Rototec AB
- Sedimentation tank system including high-rate filtration part and capable of primary treatment of sewage and wastewater, flow equalization, and treatment of wet weather flow3 Mar 2026US 12,564,798 B2Tomorrow Water
- Hydrodynamic separator with multiple settling sump cones8 Oct 2026US 2026/0306971 A1Advanced Drainage Systems, Inc.
- 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
- Rotary scraper and method for discharging foreign matter having high specific gravity in gypsum slurry13 Aug 2026US 2026/0233127 A1Tokuyama Corporation
- Plate assembly and method of manufacturing for use in water treatment6 Aug 2026US 2026/0225004 A1Jim Myers & Sons, Inc.
- Mud handling auger system6 Aug 2026US 2026/0225005 A1ESD Waste2Water, Inc.
Most cited
By later US patents
- Continuous process for the reclamation of waste drilling fluids141US 4,482,459 ANewpark Waste Treatment Systems Inc. · 1984
- Apparatus and method for separating blood components123US 4,424,132 AAsahi Kasei Kogyo Kabushiki Kaisha · 1984
- Microalgae separator apparatus and method117US 6,524,486 B2Sepal Technologies Ltd. · 2003
- Waste treatment system having integral intrachannel clarifier111US 4,446,018 AArmco Inc. · 1984
- Device for separating a blood component from blood or plasma94US 5,738,784 AE. R. Squibb & Sons, Inc. · 1998