B01D 33/01
Filters with filtering elements which move during the filtering operation: with translationally
Official title: with translationally moving filtering elements, e.g. pistons (B01D33/04 - B01D33/327 take precedence)
B01D33/01 (Filters with filtering elements which move during the filtering operation: with translationally) appears on 459 US grants and 358 published applications in this corpus.
Search patents in B01D- Granted patents
- 459
- Published applications
- 358
- Assignees
- 204
- Inventors
- 640
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 14 | 0 |
| 1990 | 16 | 0 |
| 1991 | 7 | 0 |
| 1992 | 10 | 0 |
| 1993 | 7 | 0 |
| 1994 | 4 | 0 |
| 1995 | 11 | 0 |
| 1996 | 7 | 0 |
| 1997 | 12 | 0 |
| 1998 | 9 | 0 |
| 1999 | 11 | 0 |
| 2000 | 9 | 0 |
| 2001 | 17 | 1 |
| 2002 | 19 | 14 |
| 2003 | 13 | 17 |
| 2004 | 10 | 21 |
| 2005 | 8 | 16 |
| 2006 | 6 | 13 |
| 2007 | 8 | 13 |
| 2008 | 2 | 7 |
| 2009 | 6 | 10 |
| 2010 | 6 | 9 |
| 2011 | 5 | 4 |
| 2012 | 6 | 5 |
| 2013 | 8 | 14 |
| 2014 | 11 | 18 |
| 2015 | 10 | 21 |
| 2016 | 10 | 18 |
| 2017 | 10 | 26 |
| 2018 | 10 | 22 |
| 2019 | 17 | 18 |
| 2020 | 24 | 21 |
| 2021 | 18 | 16 |
| 2022 | 21 | 21 |
| 2023 | 15 | 11 |
| 2024 | 17 | 6 |
| 2025 | 11 | 6 |
| 2026 | 5 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for ice bath filtering22 Sep 2026US 12,741,241 B2Lowtemp Industries LLC
- Brine injection system with improved filtering system8 Sep 2026US 12,728,372 B2Gea Food Solutions Bakel B.V.
- Pressing surface for filtration container assembly11 Aug 2026US 12,702,941 B2Grayl Inc.
- Shale shakers and related methods2 Jun 2026US 12,644,350 B2National Oilwell Varco, L. P.
- Concentration device and concentration method17 Feb 2026US 12,553,019 B2Murata Manufacturing Co., Ltd.
- Device and method for automatically recovering logging data storage1 Oct 2026US 2026/0295480 A1China Petroleum & Chemical Corporation
- Universal Construction for Storing, Pumping, Mixing, Diffusing, Reacting, and Separating Fluids24 Sep 2026US 2026/0284614 A1
- Powdered adsorbent lossless recovery method based on belt filter10 Sep 2026US 2026/0263973 A1Zhejiang Yongzheng Lithium Technology Co., Ltd.
- A screen assembly for use in a shale shaker20 Aug 2026US 2026/0243138 A1Rollman Holding B.V.
- Sewage solids-liquids separator system and method13 Aug 2026US 2026/0233133 A1WWJD, Inc.
Most cited
By later US patents
- Blood serum separation filter disc132US 3,972,812 ABecton, Dickinson and Company · 1976
- Assembly for collection, separation and filtration of blood127US 3,931,018 ABecton, Dickinson and Company · 1976
- Vibratory screening machine and non-clogging wear-reducing screen assembly therefor125US 5,221,008 ADerrick Manufacturing Corporation · 1993
- Vibratory screening machine with tiltable screen frame and adjustable discharge weir111US 4,882,054 ADerrick Manufacturing Corporation · 1989
- Non-clogging wear-reducing screen assembly for vibrating screening machine106US 4,575,421 ADerrick Manufacturing Corporation · 1986