B01D 33/803
In which the filtering elements are moved between filtering operations
Official title: {in which the filtering elements are moved between filtering operations (B01D33/52 takes precedence); Particular measures for removing or replacing the filtering elements; Transport systems for filters}
B01D33/803 (In which the filtering elements are moved between filtering operations) appears on 39 US grants and 22 published applications in this corpus.
Search patents in B01D- Granted patents
- 39
- Published applications
- 22
- Assignees
- 31
- Inventors
- 74
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 3 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 2 |
| 2022 | 0 | 1 |
| 2023 | 4 | 2 |
| 2024 | 0 | 2 |
| 2025 | 0 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotating irrigation screen apparatus22 Sep 2026US 12,741,240 B2
- Filter unit lifting system21 Jul 2026US 12,685,949 B2Veolia Water Solutions & Technologies Support
- Device for the continuous filtration of molten plastic material14 Nov 2023US 11,813,556 B2FIMIC s.r.l.
- Rotating irrigation screen apparatus17 Oct 2023US 11,786,848 B1
- Mechanism for detecting obstacles and mechanically reversing a direction of a pool cleaner19 Sep 2023US 11,761,225 B2Wybotics Co., Ltd.
- Filter bag and filter module for a rotary disk filter and rotary disk filter2 Apr 2026US 2026/0091330 A1
- Screen with a gear rack for a shaker system22 Jan 2026US 2026/0021430 A1Schlumberger Technology Corporation
- A microparticle filter, a textile treatment apparatus, use thereof and a method of filtering microparticles1 May 2025US 2025/0135379 A1Xeros Limited
- Rotating irrigation screen apparatus19 Dec 2024US 2024/0416263 A1
- Filter unit lifting system14 Mar 2024US 2024/0082757 A1Veolia Water Solutions & Technologies Support
Most cited
By later US patents
- Rotary filtration device and filter pack therefor74US 5,254,250 AMembrex, Inc. · 1993
- Rotary disc filtration device73US 5,143,630 AMembrex, Inc. · 1992
- Rotating filter apparatus for separating fine particles of solids from a liquid38US 4,698,156 AMicroSpun Technologies Inc. · 1987
- Concentrator & filter31US 5,556,544 A1996
- Disc filter assembly for machine tool coolant30US 5,820,756 A1998