B01D 24/007
Filters comprising loose filtering material, i.e. filtering material without any binder between
Official title: {with multiple filtering elements in series connection}
B01D24/007 (Filters comprising loose filtering material, i.e. filtering material without any binder between) appears on 219 US grants and 183 published applications in this corpus.
Search patents in B01D- Granted patents
- 219
- Published applications
- 183
- Assignees
- 147
- Inventors
- 417
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 9 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 3 |
| 2002 | 7 | 3 |
| 2003 | 4 | 10 |
| 2004 | 1 | 3 |
| 2005 | 3 | 2 |
| 2006 | 3 | 6 |
| 2007 | 2 | 5 |
| 2008 | 3 | 5 |
| 2009 | 1 | 3 |
| 2010 | 0 | 2 |
| 2011 | 4 | 2 |
| 2012 | 3 | 2 |
| 2013 | 2 | 3 |
| 2014 | 0 | 8 |
| 2015 | 4 | 5 |
| 2016 | 5 | 11 |
| 2017 | 7 | 10 |
| 2018 | 9 | 10 |
| 2019 | 10 | 9 |
| 2020 | 12 | 14 |
| 2021 | 10 | 15 |
| 2022 | 11 | 21 |
| 2023 | 10 | 14 |
| 2024 | 6 | 4 |
| 2025 | 14 | 10 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of making a filter with ground animal bone granules and filtering therewith9 Dec 2025US 12,491,453 B1
- Systems and methods for stormwater management9 Dec 2025US 12,492,130 B2Advanced Drainage Systems, Inc.
- Multi-stage filtration system for fuel cell hybrid propulsion system4 Nov 2025US 12,458,913 B2Cummins Inc.
- 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
- Debris filter for a nuclear fuel assembly bottom end part and method of manufacturing such a debris filter9 Sep 2025US 12,412,673 B2Framatome
- In-Pipe Stormwater Treatment Unit Best Management Practice (I-STUB)21 May 2026US 2026/0138056 A1The United States of America as represented by the Secretary of the Navy
- Filtration system14 May 2026US 2026/0131263 A2The Pennington School
- Multi-stage filtration system5 Feb 2026US 2026/0034484 A1Cummins Inc.
- Deionization filter assembly with cylinder-in-cylinder design25 Dec 2025US 2025/0387730 A1Cummins Filtration Inc.
- Filtration system11 Dec 2025US 2025/0375720 A1The Pennington School, Women in STEM Solving Problems ("WISSP")
Most cited
By later US patents
- Filter cartridge assemblies and methods for filtering fluids217US 6,878,283 B2Renal Solutions, Inc. · 2005
- Water treatment device with volume totalization valve104US 5,527,451 ARecovery Engineering, Inc. · 1996
- System for filtering liquids in a catch basin using filters in series and overflow channels87US 5,223,154 AEmcon Northwest, Inc. · 1993
- Filter element83US 5,169,528 ASeitz-Filter-Werke GmbH & Co. · 1992
- Filter element with regenerable bulk material filling and method for making same82US 5,290,457 ASeitz-Filter-Werke GmbH & Co. · 1994