B01D 33/807
By level measuring
Official title: {by level measuring}
B01D33/807 (By level measuring) appears on 68 US grants and 33 published applications in this corpus.
Search patents in B01D- Granted patents
- 68
- Published applications
- 33
- Assignees
- 54
- Inventors
- 130
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 1 |
| 2010 | 2 | 3 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 3 |
| 2022 | 1 | 5 |
| 2023 | 1 | 2 |
| 2024 | 3 | 3 |
| 2025 | 2 | 4 |
| 2026 | 1 | 2 |
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 recirculation systems10 Jun 2025US 12,324,998 B2
- Liquid solid separator wash water supply system29 Apr 2025US 12,285,707 B2
- Systems and processes employing wet/dry suction filter17 Sep 2024US 12,090,428 B2Greatpyr Resources LLC
- Disc filter pre-screen dual media disc filter30 Jul 2024US 12,048,890 B2Evoqua Water Technologies LLC
- Device for cleaning liquid media using vacuum belt filters1 Oct 2026US 2026/0295478 A1
- Machine chip and coolant flow cleaning system for endless belt conveyor9 Jul 2026US 2026/0192409 A1Mayfran International B.V.
- Liquid Solid Separator Recirculation Systems21 Aug 2025US 2025/0262575 A1
- Liquid solid separator wash water supply system3 Jul 2025US 2025/0214007 A1
- Separating device and method of operating a separating device5 Jun 2025US 2025/0177888 A1Sulzer Management AG
Most cited
By later US patents
- Installation for the mechanical-biological purification of waste water50US 4,090,965 AMecafina S.A. · 1978
- Cleaning device for waste water48US 6,942,786 B1Salnes Filter AS · 2005
- Process for treating a slurry of cellulosic material45US 4,046,621 ACanadian International Paper Company · 1977
- Automatic separator or shaker with electromagnetic vibrator apparatus32US 7,571,817 B2Varco I/P, Inc. · 2009
- Septic tank pump arrangement including a self-cleaning rotary strainer31US 6,231,764 B1Perfection Sprinkler Co. · 2001