B01D 2201/08
Regeneration of the filter
B01D2201/08 (Regeneration of the filter) appears on 358 US grants and 323 published applications in this corpus.
Search patents in B01D- Granted patents
- 358
- Published applications
- 323
- Assignees
- 262
- Inventors
- 835
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 9 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 13 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 15 | 0 |
| 2000 | 8 | 0 |
| 2001 | 4 | 2 |
| 2002 | 4 | 2 |
| 2003 | 7 | 6 |
| 2004 | 4 | 10 |
| 2005 | 4 | 11 |
| 2006 | 6 | 6 |
| 2007 | 4 | 8 |
| 2008 | 1 | 5 |
| 2009 | 5 | 9 |
| 2010 | 5 | 5 |
| 2011 | 3 | 6 |
| 2012 | 3 | 11 |
| 2013 | 3 | 18 |
| 2014 | 7 | 10 |
| 2015 | 8 | 9 |
| 2016 | 7 | 15 |
| 2017 | 12 | 17 |
| 2018 | 9 | 16 |
| 2019 | 13 | 22 |
| 2020 | 17 | 19 |
| 2021 | 18 | 27 |
| 2022 | 22 | 17 |
| 2023 | 17 | 25 |
| 2024 | 20 | 22 |
| 2025 | 17 | 17 |
| 2026 | 11 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 2201/081Using nozzles or suction devicesIndexing code152
- B01D 2201/085Using another chemical than the liquid to be filteredIndexing code66
- B01D 2201/087Using gas bubblesIndexing code49
- B01D 2201/088Arrangements for killing microorganismsIndexing code49
- B01D 2201/089Using rollers having projections to clear the filter aperturesIndexing code16
- B01D 2201/086Using fluid streams co-current to the filtration directionIndexing code13
Recent patents
- Candle filter device6 Oct 2026US 12,752,222 B2Lenzing Aktiengesellschaft
- Filtration system self cleaning mechanism15 Sep 2026US 12,735,331 B2Amiad Water Systems Ltd.
- Brine injection system with improved filtering system8 Sep 2026US 12,728,372 B2Gea Food Solutions Bakel B.V.
- Filter apparatus and clothes treating apparatus having the same21 Jul 2026US 12,686,962 B2Samsung Electronics Co., Ltd.
- Lightweight fibrous media (LFM) filter31 Mar 2026US 12,589,336 B1
- Powdered adsorbent lossless recovery method based on belt filter10 Sep 2026US 2026/0263973 A1Zhejiang Yongzheng Lithium Technology Co., Ltd.
- Filtration system25 Jun 2026US 2026/0175151 A1Mitsubishi Kakoki Kaisha, Ltd.
- Component for a filter unit, filter unit, and air purification system11 Jun 2026US 2026/0158421 A1Carl Freudenberg KG
- Regenerative media filter21 May 2026US 2026/0138061 A1Blue Skies Global LLC
- Regenerative media filter21 May 2026US 2026/0138062 A1Blue Skies Global LLC
Most cited
By later US patents
- Method and apparatus for testing the integrity of filter elements142US 5,417,101 APall Corporation · 1995
- Antimicrobial filter cartridge129US 5,868,933 A1999
- Method of back-washing submerged-type ceramic membrane separation apparatus106US 5,647,988 AKubota Corporation · 1997
- Method and apparatus for cleaning filter material in a filter apparatus utilizing a suction generating nozzle99US 5,951,878 AAqua-Aerobic Systems, Inc. · 1999
- Multi-layer material for processing septic efficient and waste water and method of using the same62US 5,954,451 A1999