B01D 29/25
Open-ended the arrival of the mixture to be filtered and the discharge
Official title: open-ended {the arrival of the mixture to be filtered and the discharge of the concentrated mixture are situated on both opposite sides of the filtering element}
B01D29/25 (Open-ended the arrival of the mixture to be filtered and the discharge) appears on 86 US grants and 35 published applications in this corpus.
Search patents in B01D- Granted patents
- 86
- Published applications
- 35
- Assignees
- 53
- Inventors
- 137
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 8 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 2 | 2 |
| 2013 | 0 | 1 |
| 2014 | 2 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 3 | 2 |
| 2019 | 1 | 3 |
| 2020 | 2 | 5 |
| 2021 | 3 | 2 |
| 2022 | 3 | 3 |
| 2023 | 3 | 3 |
| 2024 | 1 | 0 |
| 2025 | 2 | 2 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for securing an open-ended filter to a submersible cleaner21 Apr 2026US 12,607,030 B1
- Filter assembly and container for collecting a body fluid containing the same23 Sep 2025US 12,420,222 B2Fresenius Hemocare Italia S.R.L.
- Vortical cross-flow filtration system17 Jun 2025US 12,330,174 B2Cleanr Inc.
- Cross-flow filtration device and cross-flow filtration method23 Jul 2024US 12,042,766 B2NEC Corporation
- Filter apparatus31 Oct 2023US 11,801,463 B2Hydac Process Technology GmbH
- Vortical cross-flow filtration system10 Sep 2026US 2026/0263971 A1Cleanr Inc.
- Effluent filtration of a washing machine through a helical brush10 Sep 2026US 2026/0263972 A1MANN+HUMMEL Life Sciences & Environment Holding Singapore Pte. Ltd.
- Screen, in particular pressure screen2 Apr 2026US 2026/0091329 A1Andritz Fiedler GmbH
- Vortical cross-flow filtration system17 Apr 2025US 2025/0121382 A1Cleanr Inc.
- Vortical cross-flow filtration system10 Apr 2025US 2025/0114802 A1Cleanr Inc.
Most cited
By later US patents
- Filtration method and apparatus86US 4,790,942 AMembrex, Inc. · 1988
- Small volume rotary filter86US 4,876,013 AMembrex, Inc. · 1989
- Filter device68US 5,922,208 ADefil N.V. Holland Intertrust (Antilles) N.V. · 1999
- Apparatus for automatically cleaning extrusion screens in juice finishing machines and the like48US 4,705,055 ABrown International Corporation · 1987
- Filter especially intended for filtering natural water for the irrigation of cultivated fields41US 3,959,140 A1976