B01D 21/0006
Settling tanks provided with means for cleaning and maintenance
Official title: {Settling tanks provided with means for cleaning and maintenance}
B01D21/0006 (Settling tanks provided with means for cleaning and maintenance) appears on 341 US grants and 288 published applications in this corpus.
Search patents in B01D- Granted patents
- 341
- Published applications
- 288
- Assignees
- 217
- Inventors
- 579
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 11 | 0 |
| 1997 | 7 | 0 |
| 1998 | 16 | 0 |
| 1999 | 8 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 3 |
| 2002 | 3 | 7 |
| 2003 | 9 | 13 |
| 2004 | 9 | 16 |
| 2005 | 13 | 14 |
| 2006 | 9 | 7 |
| 2007 | 12 | 13 |
| 2008 | 8 | 11 |
| 2009 | 6 | 15 |
| 2010 | 9 | 10 |
| 2011 | 10 | 4 |
| 2012 | 11 | 12 |
| 2013 | 6 | 8 |
| 2014 | 8 | 4 |
| 2015 | 5 | 16 |
| 2016 | 4 | 14 |
| 2017 | 8 | 11 |
| 2018 | 12 | 8 |
| 2019 | 10 | 12 |
| 2020 | 11 | 20 |
| 2021 | 15 | 19 |
| 2022 | 18 | 8 |
| 2023 | 13 | 17 |
| 2024 | 9 | 13 |
| 2025 | 8 | 5 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Waste oil handling apparatus26 May 2026US 12,636,596 B2
- System and method for scale management in water heating system26 May 2026US 12,638,215 B2Bradford White Corporation
- Covers for liquid containment apparatuses and systems that include the same19 May 2026US 12,629,614 B2Xylem Water Solutions Zelienople LLC
- Multi-stage circulating separation equipment28 Apr 2026US 12,612,318 B2
- Launder cover system30 Dec 2025US 12,508,523 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
- Covers for Liquid Containment Apparatuses and Systems That Include the Same3 Sep 2026US 2026/0257154 A1Xylem Water Solutions Zellenople LLC
- Rotary scraper and method for discharging foreign matter having high specific gravity in gypsum slurry13 Aug 2026US 2026/0233127 A1Tokuyama Corporation
- Stormwater management system for urban storage and recovery13 Aug 2026US 2026/0234042 A1
- Scum removal system in sewage treatment plant30 Jul 2026US 2026/0217571 A1Utsunomiya Kogyo Co., Ltd.
Most cited
By later US patents
- Swimming pool control system134US 5,730,861 A1998
- Trailer mounted mobile apparatus for dewatering and recovering formation sand109US 7,240,681 B22007
- Apparatus and method for separation of solids from liquid82US 5,814,230 A1998
- Oil-water separator73US 4,722,800 AHighland Tank and Manufacturing Company · 1988
- Stormwater treatment apparatus68US 6,350,374 B1Jensen Enterprises, Inc. · 2002