B01D 35/0276
Filtering elements with a vertical rotation or symmetry axis mounted on tanks
Official title: {Filtering elements with a vertical rotation or symmetry axis mounted on tanks or reservoirs}
B01D35/0276 (Filtering elements with a vertical rotation or symmetry axis mounted on tanks) appears on 175 US grants and 177 published applications in this corpus.
Search patents in B01D- Granted patents
- 175
- Published applications
- 177
- Assignees
- 102
- Inventors
- 317
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 2 |
| 2002 | 9 | 2 |
| 2003 | 3 | 5 |
| 2004 | 3 | 4 |
| 2005 | 4 | 4 |
| 2006 | 1 | 6 |
| 2007 | 3 | 5 |
| 2008 | 5 | 3 |
| 2009 | 2 | 4 |
| 2010 | 3 | 5 |
| 2011 | 1 | 1 |
| 2012 | 5 | 6 |
| 2013 | 3 | 4 |
| 2014 | 2 | 8 |
| 2015 | 3 | 6 |
| 2016 | 12 | 5 |
| 2017 | 2 | 7 |
| 2018 | 4 | 8 |
| 2019 | 8 | 6 |
| 2020 | 6 | 16 |
| 2021 | 5 | 14 |
| 2022 | 18 | 19 |
| 2023 | 7 | 12 |
| 2024 | 15 | 9 |
| 2025 | 13 | 7 |
| 2026 | 2 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Retrofitting and use of rectangular filters, assembly and method for filtration25 Aug 2026US 12,714,957 B2Filtration Technology Corporation
- Positive-pressure non-agitating liquid filtration6 Jan 2026US 12,515,150 B2
- Tank inlet filters21 Oct 2025US 12,447,425 B2Rain Harvesting Pty Ltd
- Water tank with tank outlet valve and water filter cartridge with two water filter cartridge outlets which are arranged concentrically to one another30 Sep 2025US 12,427,450 B2AQUIS WASSER-LUFT-SYSTEME GMBH, Lindau
- Filtration design for immersion cooling tank systems22 Jul 2025US 12,364,939 B23M Innovative Properties Company
- Lye outlet within a lye filter24 Sep 2026US 2026/0284562 A1John Cockerill Hydrogen Belgium
- Washing machine, and filter device for washing machine16 Jul 2026US 2026/0201627 A1LG Electronics Inc.
- Filter for hydraulic fluids for hydraulic circuits18 Jun 2026US 2026/0166451 A1Mp Filtri S.P.A.
- Filter element with integrated drain filter21 May 2026US 2026/0138060 A1Donaldson Company, Inc.
- Water recycling device with filtration tank7 May 2026US 2026/0124561 A1Mimbly AB
Most cited
By later US patents
- Method of discharging septic tank filtered effluent69US 4,439,323 AOrenco Systems, Inc. · 1984
- Filter device69US 7,459,078 B2Hydac Filtertechnik GmbH · 2008
- Septic tank filters66US 4,710,295 A1987
- Liquid filter assembly; and methods52US 8,119,002 B2Donaldson Company, Inc. · 2012
- Wastewater treatment mechanism46US 5,207,896 ANorwalk Wastewater Equipment Company · 1993