B01D 29/666
By a stirrer placed on the filtrate side of the filtering element
Official title: {by a stirrer placed on the filtrate side of the filtering element}
B01D29/666 (By a stirrer placed on the filtrate side of the filtering element) appears on 13 US grants and 6 published applications in this corpus.
Search patents in B01D- Granted patents
- 13
- Published applications
- 6
- Assignees
- 10
- Inventors
- 22
- Latest grant
- 5 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Rotor element and a rotor for a screening apparatus5 Oct 2021US 11,135,532 B2Aikawa Fiber Technologies Oy
- Rotor element and a rotor for a screening apparatus14 Apr 2020US 10,617,979 B2Aikawa Fiber Technologies Trust
- Pond pump with a self-cleaning filter unit12 Nov 2019US 10,470,443 B2
- Process for regulating a paper pulp deinking line and device for continuously measuring the quantity of particles contained in a liquid4 Jan 2000US 6,010,593 ACentre Technique De L' Industrie Des Papiers, Cartons Et Celluloses
- Pressurized screen arrangement21 Oct 1997US 5,679,250 ASunds Defibrator Industries Aktiebolag
- Filter Device24 Apr 2025US 2025/0128191 A1Hydac Process Technology GmbH
- Rotor element and a rotor for a screening apparatus11 Jun 2020US 2020/0179839 A1Aikawa Fiber Technologies Trust
- Pond pump with a self-cleaning filter unit3 May 2018US 2018/0116188 A1
- Rotor element and a rotor for a screening apparatus19 Feb 2015US 2015/0048020 A1Aikawa Fiber Technologies Trust
- Recycling filtrate to inlet during backwashing2 Oct 2014US 2014/0291261 A1Eaton Corporation
Most cited
By later US patents
- Apparatus for the purification of paper pulp26US 4,200,537 AE et M Lamort · 1980
- Screening apparatus for fiber suspensions19US 4,188,286 AHermann Finckh Maschinenfabrik GmbH & Co. · 1980
- Marine water inlet device11US 4,061,571 A1977
- Apparatus for separating solid particles from a liquid9US 5,246,580 A1993
- Filtration apparatus and method for removing particulate contaminants from commercial laundry waste water7US 5,350,526 A1994