B01D 24/4668
By moving the filtering element
Official title: {by moving the filtering element (B01D24/4605 and B01D24/4631 take precedence)}
B01D24/4668 (By moving the filtering element) appears on 179 US grants and 107 published applications in this corpus.
Search patents in B01D- Granted patents
- 179
- Published applications
- 107
- Assignees
- 104
- Inventors
- 258
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 5 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 7 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 1 |
| 2002 | 6 | 3 |
| 2003 | 3 | 3 |
| 2004 | 2 | 5 |
| 2005 | 1 | 5 |
| 2006 | 1 | 2 |
| 2007 | 3 | 3 |
| 2008 | 4 | 4 |
| 2009 | 1 | 3 |
| 2010 | 3 | 2 |
| 2011 | 3 | 9 |
| 2012 | 3 | 6 |
| 2013 | 1 | 6 |
| 2014 | 8 | 8 |
| 2015 | 2 | 6 |
| 2016 | 6 | 6 |
| 2017 | 5 | 8 |
| 2018 | 5 | 7 |
| 2019 | 4 | 4 |
| 2020 | 6 | 4 |
| 2021 | 6 | 4 |
| 2022 | 5 | 2 |
| 2023 | 4 | 3 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lightweight fibrous media (LFM) filter31 Mar 2026US 12,589,336 B1
- Backwashable media bed filtration system and drop in retrofit kit for same28 Jan 2025US 12,208,346 B2Mycelx Technologies Corporation
- Imaging system with cleaning of fine particle collection device5 Mar 2024US 11,921,459 B2Hewlett-Packard Development Company, L. P.
- Sand filter LED status light10 Oct 2023US 11,779,863 B2Evoqua Water Technologies LLC
- Integrated unit for intake and pretreatment with local backwashing31 Jan 2023US 11,565,199 B2Ide Water Technologies Ltd.
- Method and Apparatus for Cleaning Filter Media4 Dec 2025US 2025/0367578 A1Veolia Water Solutions & Technologies Support
- Hydraulic sludge recovery system27 Mar 2025US 2025/0099880 A1The Board of Trustees of the Leland Stanford Junior University
- Fluidized bed sorter9 May 2024US 2024/0149190 A1Rory Korathu-Larson, LLC
- Backwashable media bed filtration system and drop in retrofit kit for same13 Apr 2023US 2023/0112945 A1Mycelx Technologies Corporation
- Imaging system with cleaning of fine particle collection device6 Apr 2023US 2023/0103365 A1Hewlett-Packard Development Company, L. P.
Most cited
By later US patents
- Method for separating pollutants from liquid60US 4,246,102 ARederiaktiebolaget Nordstjernan · 1981
- Method for the filtration of a suspension or emulsion52US 4,126,546 ARederiaktiebolaget Nordstjernan · 1978
- Moving bed filters48US 5,454,959 A1995
- Method and apparatus for separating suspended solids from liquids47US 4,743,382 AState of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State University · 1988
- Filtration unit45US 6,110,389 A2000