B01D 24/4689
Displacement of the filtering material to a compartment of the filtering device
Official title: {Displacement of the filtering material to a compartment of the filtering device for regeneration}
B01D24/4689 (Displacement of the filtering material to a compartment of the filtering device) appears on 89 US grants and 56 published applications in this corpus.
Search patents in B01D- Granted patents
- 89
- Published applications
- 56
- Assignees
- 59
- Inventors
- 130
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 5 | 2 |
| 2003 | 2 | 2 |
| 2004 | 2 | 2 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 2 | 3 |
| 2009 | 1 | 3 |
| 2010 | 1 | 1 |
| 2011 | 3 | 7 |
| 2012 | 2 | 3 |
| 2013 | 0 | 5 |
| 2014 | 6 | 6 |
| 2015 | 1 | 2 |
| 2016 | 2 | 1 |
| 2017 | 2 | 3 |
| 2018 | 3 | 4 |
| 2019 | 0 | 1 |
| 2020 | 4 | 1 |
| 2021 | 4 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Integrated unit for intake and pretreatment with local backwashing31 Jan 2023US 11,565,199 B2Ide Water Technologies Ltd.
- Bio-filter unit for a fish farming system24 Jan 2023US 11,560,325 B2N P Innovation AB
- Energy reduction and monitoring control system for backwashing media systems14 Dec 2021US 11,198,075 B2Nexom (US), Inc.
- Filtration device16 Nov 2021US 11,173,429 B2Nihon Genryo Co., 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
- Bio-filter unit for a fish farming system17 Feb 2022US 2022/0048797 A1N P Innovation AB
- Filtration device11 Mar 2021US 2021/0069617 A1Nihon Genryo Co., Ltd.
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
- 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
- Apparatus for the filtration of a suspension or emulsion41US 4,197,201 ARederiaktiebolaget Nordstjernan · 1980
- Filtration method and apparatus having a filtrate collection chamber within the filter bed38US 5,173,194 A1992