B01D 33/29
The movement of the filter elements being a combination of movements
Official title: the movement of the filter elements being a combination of movements (B01D33/19 takes precedence)
B01D33/29 (The movement of the filter elements being a combination of movements) appears on 35 US grants and 18 published applications in this corpus.
Search patents in B01D- Granted patents
- 35
- Published applications
- 18
- Assignees
- 29
- Inventors
- 82
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 2 |
| 2020 | 3 | 1 |
| 2021 | 3 | 3 |
| 2022 | 2 | 1 |
| 2023 | 1 | 2 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Conveyor-belt filtering device for mechanically cleaning a liquid21 Apr 2026US 12,605,659 B2FSM Frankenberger GmbH
- Device for filtering liquids7 Mar 2023US 11,596,881 B2Pantreon GmbH
- Kind of an integrated sewage treatment equipment for paper mill22 Nov 2022US 11,504,652 B2Zhengzhou University of Aeronautics
- Dewatering unit and method of using the same7 Jun 2022US 11,351,482 B2Cogar Manufacturing, Inc.
- Method of unloading floating containers21 Sep 2021US 11,123,768 B2Cogar Manufacturing, Inc.
- Seesaw-type feeding device for collecting solid suspended materials5 Oct 2023US 2023/0311031 A1Dalian University of Technology
- Conveyor-belt filtering device and method27 Jul 2023US 2023/0233965 A1FSM Frankenberger GmbH
- Device for filtering liquids24 Mar 2022US 2022/0088513 A1Pantreon GmbH
- Kind of an integrated sewage treatment equipment for paper mill29 Apr 2021US 2021/0121798 A1Zhengzhou University of Aeronautics
- Dewatering unit and method of using the same14 Jan 2021US 2021/0008468 A1Cogar Manufacturing, Inc.
Most cited
By later US patents
- Blood serum separation filter disc132US 3,972,812 ABecton, Dickinson and Company · 1976
- Fluid processing apparatus65US 3,997,447 AComposite Sciences, Inc. · 1976
- Method and device for separation of colloidal suspensions31US 4,872,988 A1989
- Polymeric basket frame for a traveling water screen25US 4,582,601 AEnvirex Inc. · 1986
- Rotary filter apparatus20US 4,188,294 A1980