B01D 33/66
By gases or by heating
Official title: by gases or by heating
B01D33/66 (By gases or by heating) appears on 82 US grants and 25 published applications in this corpus.
Search patents in B01D- Granted patents
- 82
- Published applications
- 25
- Assignees
- 60
- Inventors
- 135
- Latest grant
- 3 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 5 | 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 | 3 |
| 2003 | 1 | 0 |
| 2004 | 0 | 4 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 2 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Filtration apparatus utilizing differential pressure over a filtering element3 Dec 2024US 12,157,688 B2Pro-Flo AS
- Heat pump13 Sep 2022US 11,441,794 B2Yanmar Power Technology Co., Ltd.
- 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.
- Heat Pump31 Mar 2020US 10,605,466 B2Yanmar Co., Ltd.
- System for purification of acrylamido tertiary butyl sulfonic acid and process thereof17 Oct 2024US 2024/0343685 A1Vinati Organics Limited
- Filtration apparatus and method28 Apr 2022US 2022/0127178 A1Pro-Flo AS
- 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.
- Heat pump25 Jun 2020US 2020/0200405 A1Yanmar Co., Ltd.
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
- Method for concentrating a slurry containing a solid particulate component40US 4,120,911 AChevron Research Company · 1978
- Suction filter-drier40US 4,787,154 A1988