B01D 33/808
By pressure measuring
Official title: {by pressure measuring}
B01D33/808 (By pressure measuring) appears on 47 US grants and 23 published applications in this corpus.
Search patents in B01D- Granted patents
- 47
- Published applications
- 23
- Assignees
- 37
- Inventors
- 96
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 3 |
| 2019 | 1 | 1 |
| 2020 | 2 | 3 |
| 2021 | 0 | 0 |
| 2022 | 2 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 3 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of filtrating liquid, and filtration apparatus for filtrating liquid25 Aug 2026US 12,714,956 B2Renasys AS
- Liquid solid separator wash water supply system29 Apr 2025US 12,285,707 B2
- Optimization of rotary filters relative to risk of clogging a facility for pumping water from a natural site12 Sep 2023US 11,752,456 B2Electricite de France
- Controlling a separation device19 Jul 2022US 11,389,754 B2U.S. Peroxide, LLC
- Extraction of organic products from plant and animal materials12 Apr 2022US 11,298,633 B2Metagreen Ventures
- Liquid solid separator wash water supply system3 Jul 2025US 2025/0214007 A1
- Disc filter control systems and methods12 Dec 2024US 2024/0408519 A1Kadant Black Clawson LLC
- Method of filtrating liquid, and filtration apparatus for filtrating liquid3 Oct 2024US 2024/0325951 A1Renasys AS
- Filtration arrangements and filtration apparatus12 Sep 2024US 2024/0299869 A1Renasys AS
- Liquid solid separator wash water supply system17 Mar 2022US 2022/0080338 A1
Most cited
By later US patents
- Backwash apparatus for multi element filter unit46US 4,642,188 ADover Corporation · 1987
- Microscreen drum32US 4,038,187 AEnvirex Inc. · 1977
- Continuous backwashing filter apparatus with filtered fluid retention plate30US 5,128,029 A1992
- Filter for continuous filtering of a suspension under pressure27US 4,695,381 AAB Hedemora Verkstader · 1987
- Vacuum control system and method for dewatering fabrics26US 4,398,996 AAlbany International Corp. · 1983