B01D 29/843
By direct contact with a fluid
Official title: {by direct contact with a fluid}
B01D29/843 (By direct contact with a fluid) appears on 73 US grants and 24 published applications in this corpus.
Search patents in B01D- Granted patents
- 73
- Published applications
- 24
- Assignees
- 46
- Inventors
- 105
- Latest grant
- 8 Aug 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 1 |
| 2005 | 2 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 3 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 3 | 4 |
| 2011 | 1 | 0 |
| 2012 | 2 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 3 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Liquid discharge filter and its use8 Aug 2023US 11,717,775 B2Cargill, Incorporated
- Method for operating a filter press and a filter press11 Aug 2020US 10,737,200 B2Outotec (Finland) Oy
- Filtration apparatus17 Apr 2018US 9,943,788 B2Alconbury Weston Ltd
- Oil-filtration system with oil/air separation for automated food-fryers25 Aug 2015US 9,114,336 B2Oberlin Filter Company
- Filter cloth traveling type belt filter and production method of toner particles1 Oct 2013US 8,545,133 B2Canon Kabushiki Kaisha
- Liquid discharge filter and its use12 Aug 2021US 2021/0245078 A1Cargill, Incorporated
- Self-cleaning filter10 Dec 2020US 2020/0384388 A1Ceco Environmental IP Inc.
- Method for operating a filter press and a filter press22 Oct 2020US 2020/0330903 A1Outotec (Finland) Oy
- Method for operating a filter press and a filter press11 Jun 2020US 2020/0179830 A1Outotec (Finland) Oy
- Device and method for separating the solid fraction from the liquid fraction of a slurry14 Jun 2018US 2018/0161706 A1
Most cited
By later US patents
- Pressure filter with vibratory impactor125US 4,526,688 AIndustrial Filter & Pump Mfg. Co. · 1985
- Filter cake removal method and apparatus52US 4,289,630 AIndustrial Filter & Pump Mfg. Co. · 1981
- Cell harvester50US 4,787,988 ABiomedical Research and Development Laboratories, Inc. · 1988
- Dewatering system for sludge removal42US 5,156,749 A1992
- Dried product discharge system38US 6,890,129 B23V Cogeim S.p.A. · 2005