B01D 2101/00
Types of filters having loose filtering material
B01D2101/00 (Types of filters having loose filtering material) appears on 137 US grants and 165 published applications in this corpus.
Search patents in B01D- Granted patents
- 137
- Published applications
- 165
- Assignees
- 125
- Inventors
- 318
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 4 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 8 | 8 |
| 2015 | 1 | 4 |
| 2016 | 4 | 4 |
| 2017 | 4 | 12 |
| 2018 | 6 | 15 |
| 2019 | 14 | 20 |
| 2020 | 14 | 19 |
| 2021 | 9 | 12 |
| 2022 | 12 | 18 |
| 2023 | 9 | 12 |
| 2024 | 9 | 12 |
| 2025 | 12 | 10 |
| 2026 | 3 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for stormwater management6 Oct 2026US 12,753,093 B2Advanced Drainage Systems, Inc.
- Systems and methods for production of potable water by recycling processed wastewater streams17 Feb 2026US 12,552,686 B1Mulberry River Environmental LLC
- Filtration device and water filtration pitcher comprising the same13 Jan 2026US 12,521,650 B2King's Flair Innovative Marketing Limited
- Method of making a filter with ground animal bone granules and filtering therewith9 Dec 2025US 12,491,453 B1
- Devices and methods for moving, removing and/or installing one or more components of a treatment unit9 Dec 2025US 12,491,454 B2Roberts Marketing DE, Inc.
- Adjustable weir for a collection trough, a collection trough and a collection trough assembly24 Sep 2026US 2026/0284558 A1Roberts Water Technologies, Inc.
- Systems and Methods for Stormwater Treatment6 Aug 2026US 2026/0225917 A1Geostorage Corporation
- Waste water treatment system25 Jun 2026US 2026/0175147 A1Altinay Savunma Teknolojileri Anonim Sirketi
- Systems and Methods for Production of Potable Water By Recycling Processed Wastewater Streams25 Jun 2026US 2026/0176164 A1Mulberry River Technologies, LLC
- Vacuum cleaner filter bag and method for preparing the vacuum cleaner filter bag11 Jun 2026US 2026/0158426 A1Essilor International
Most cited
By later US patents
- Simplified method and apparatus for purification82US 4,948,499 APurewater Science International, Inc. · 1990
- Filter cartridges having nonwoven melt blown filtration media with integral co-located support and filtration79US 5,591,335 AMemtec America Corporation · 1997
- Melt-blown filtration media having integrally co-located support and filtration fibers66US 5,681,469 AMemtec America Corporation · 1997
- Liquid filter of spiral wound construction with alternate layers of a surface area media and a depth media43US 4,877,527 AAllied-Signal Inc. · 1989
- Simplified method and apparatus for purification41US 4,828,692 APurewater Sciences International, Inc. · 1989