B01D 33/663
By direct contact with a fluid
Official title: {by direct contact with a fluid}
B01D33/663 (By direct contact with a fluid) appears on 54 US grants and 15 published applications in this corpus.
Search patents in B01D- Granted patents
- 54
- Published applications
- 15
- Assignees
- 42
- Inventors
- 97
- Latest grant
- 27 Apr 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 2 |
| 2003 | 0 | 0 |
| 2004 | 0 | 3 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Tumbler systems and methods27 Apr 2021US 10,987,616 B2Gala Industies, Inc.
- Separation process having improved capacity8 Dec 2020US 10,857,490 B2BP Corporation North America Inc.
- Tumbler systems and methods30 Jul 2019US 10,363,499 B2Gala Industries, Inc.
- Tumbler systems and methods10 Oct 2017US 9,782,705 B2Gala Industries, Inc.
- Filter device, method for its operation and use thereof8 Nov 2016US 9,486,721 B2Siemens Aktiengesellschaft
- Rotary pressure filter module16 Dec 2021US 2021/0387116 A1BHS-Sonthofen GmbH
- Solid-liquid separation device and filtration device7 Oct 2021US 2021/0308605 A1Tsukishima Kikai Co., Ltd.
- Tumbler systems and methods3 Oct 2019US 2019/0299131 A1Gala Industries, Inc.
- Controlling vacuum in a horizontal pan filtering device1 Aug 2019US 2019/0233733 A1Syncrude Canada Ltd.
- Separation process having improved capacity26 Jul 2018US 2018/0207559 A1BP Corporation North American Inc.
Most cited
By later US patents
- Apparatus and method for separation of solids from liquid82US 5,814,230 A1998
- Method and apparatus for displacing liquor from a slurry of particulate solid material60US 5,643,468 AImperial Chemical Industries PLC · 1997
- Process for recovering crystals from a slurry46US 6,500,347 B2Mitsubishi Gas Chemical Company, Inc. · 2002
- System for treating sludge37US 3,962,069 AInoue-Japan Research Inc. · 1976
- Centrifuge having an inner, invertible, funnel-like container36US 4,000,074 AThe United States of America as represented by the Secretary of the Army · 1976