B01D 36/04
Combinations of filters with settling tanks
B01D36/04 (Combinations of filters with settling tanks) appears on 314 US grants and 202 published applications in this corpus.
Search patents in B01D- Granted patents
- 314
- Published applications
- 202
- Assignees
- 224
- Inventors
- 623
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 10 | 0 |
| 1988 | 7 | 0 |
| 1989 | 12 | 0 |
| 1990 | 6 | 0 |
| 1991 | 13 | 0 |
| 1992 | 14 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 9 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 2 |
| 2002 | 8 | 5 |
| 2003 | 4 | 4 |
| 2004 | 6 | 8 |
| 2005 | 5 | 10 |
| 2006 | 8 | 6 |
| 2007 | 2 | 7 |
| 2008 | 3 | 2 |
| 2009 | 4 | 3 |
| 2010 | 2 | 3 |
| 2011 | 3 | 1 |
| 2012 | 2 | 4 |
| 2013 | 2 | 9 |
| 2014 | 5 | 9 |
| 2015 | 9 | 10 |
| 2016 | 8 | 6 |
| 2017 | 3 | 11 |
| 2018 | 10 | 8 |
| 2019 | 10 | 10 |
| 2020 | 9 | 8 |
| 2021 | 5 | 11 |
| 2022 | 15 | 13 |
| 2023 | 5 | 13 |
| 2024 | 7 | 12 |
| 2025 | 13 | 20 |
| 2026 | 7 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cyclone separator and dishwasher4 Aug 2026US 12,697,628 B2Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd.
- Bi-directional filter19 May 2026US 12,629,620 B2Combipro AS
- Purification of waste plastics based oil via a polymerization19 May 2026US 12,630,768 B2Totalenergies Onetech
- Anaerobic digestion device for organic solid waste based on uncoupling of hydraulic retention time (HRT) from sludge retention time (SRT)28 Apr 2026US 12,612,321 B2Tongji University
- Process for the purification of waste plastics based oil with the help of basic compounds17 Mar 2026US 12,577,471 B2Totalenergies Onetech
- Process for cleaning or removing solids from tanks8 Oct 2026US 2026/0307117 A1Wacker Chemie AG
- Storage device and coolant system24 Sep 2026US 2026/0284815 A1Fanuc Corporation
- Methods for purifying a reclaimed polymer24 Sep 2026US 2026/0286083 A1
- Washing machine effluent filtration with an agitator rotating around a filter element3 Sep 2026US 2026/0257157 A1MANN+HUMMEL Life Sciences & Environment Holding Singapore Pte. Ltd.
- Potato protein extraction apparatus and method27 Aug 2026US 2026/0250314 A1Root Extracts Limited
Most cited
By later US patents
- Drilling mud cleaning method and apparatus109US 4,634,535 A1987
- Directed flow bubble trap for arterial blood97US 4,344,777 A1982
- Blood-air separator and filter88US 4,368,118 A1983
- Oil filter I81US 4,997,556 AMitsubishi Oil Co., Ltd. · 1991
- Water filtration process and apparatus having upflow filter with buoyant filter media and downflow filter with nonbuoyant filter media70US 4,547,286 ANeptune Microfloc, Inc. · 1985