B01D 25/38
By moving parts
Official title: by moving parts, e.g. scrapers, contacting stationary filter elements {sprayers}
B01D25/38 (By moving parts) appears on 77 US grants and 29 published applications in this corpus.
Search patents in B01D- Granted patents
- 77
- Published applications
- 29
- Assignees
- 51
- Inventors
- 124
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 4 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 2 | 2 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 3 |
| 2022 | 1 | 3 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filter press with multi-function robot for maintenance, tracking and wear control of filtering septa31 Mar 2026US 12,589,337 B2Diemme Filtration S.R.L.
- Filter cloth cleaning method of filter press13 Jan 2026US 12,521,652 B2Ishigaki Company Limited
- Filter press and washer for filter plate apparatus29 Apr 2025US 12,285,706 B2FLSmidth A/S
- Filter press7 Mar 2023US 11,596,879 B2Shanghai Liqing Equipment Co., Ltd.
- Filtration system2 Aug 2022US 11,400,393 B2Maagan Filtration Aca Ltd.
- Uniform spray-coating, cumulatively-stacking and squeezing solid-liquid separation system26 Jun 2025US 2025/0205619 A1Beijing Jinyu Mangrove Environmental Protection Technology Co., Ltd.
- Plate detection apparatus for filter presses27 Mar 2025US 2025/0099881 A1
- Filter press with multi-function robot for maintenance, tracking and wear control of filtering septa7 Mar 2024US 2024/0075412 A1Aqseptence Group, Inc.
- Filter press and washer for filter plate apparatus1 Dec 2022US 2022/0379243 A1FLSmidth A/S
- Filtration system1 Dec 2022US 2022/0379246 A1Maagan Filtration Aca Ltd.
Most cited
By later US patents
- Self-cleaning filter assembly for solenoid-actuated valve37US 4,360,037 AAnthony Manufacturing Corp. · 1982
- Spraying apparatus for cleaning filter press plates24US 4,076,033 APassavant-Werke Michelbacher Hutte · 1978
- Movable apparatus for removal of filter plates from a filter press20US 4,172,792 A1979
- Washing apparatus for filter press16US 4,129,137 AKurita Machinery Manufacturing Company Limited · 1978
- Filtering apparatus and method15US 4,430,231 A1984