B01D 33/04
Filters with filtering elements which move during the filtering operation: with filtering
Official title: with filtering bands or the like supported on cylinders which are impervious for filtering
B01D33/04 (Filters with filtering elements which move during the filtering operation: with filtering) appears on 414 US grants and 150 published applications in this corpus.
Search patents in B01D- Granted patents
- 414
- Published applications
- 150
- Assignees
- 245
- Inventors
- 659
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 9 | 0 |
| 1978 | 14 | 0 |
| 1979 | 12 | 0 |
| 1980 | 13 | 0 |
| 1981 | 14 | 0 |
| 1982 | 12 | 0 |
| 1983 | 10 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 11 | 0 |
| 1987 | 14 | 0 |
| 1988 | 10 | 0 |
| 1989 | 15 | 0 |
| 1990 | 18 | 0 |
| 1991 | 13 | 0 |
| 1992 | 12 | 0 |
| 1993 | 20 | 0 |
| 1994 | 5 | 0 |
| 1995 | 11 | 0 |
| 1996 | 13 | 0 |
| 1997 | 13 | 0 |
| 1998 | 4 | 0 |
| 1999 | 12 | 0 |
| 2000 | 10 | 0 |
| 2001 | 13 | 3 |
| 2002 | 3 | 8 |
| 2003 | 9 | 5 |
| 2004 | 1 | 4 |
| 2005 | 4 | 5 |
| 2006 | 2 | 4 |
| 2007 | 1 | 3 |
| 2008 | 4 | 5 |
| 2009 | 2 | 7 |
| 2010 | 6 | 7 |
| 2011 | 4 | 12 |
| 2012 | 5 | 5 |
| 2013 | 3 | 7 |
| 2014 | 6 | 8 |
| 2015 | 3 | 9 |
| 2016 | 6 | 6 |
| 2017 | 1 | 10 |
| 2018 | 7 | 9 |
| 2019 | 9 | 3 |
| 2020 | 6 | 4 |
| 2021 | 5 | 3 |
| 2022 | 4 | 7 |
| 2023 | 4 | 2 |
| 2024 | 3 | 5 |
| 2025 | 2 | 3 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of filtrating liquid, and filtration apparatus for filtrating liquid25 Aug 2026US 12,714,956 B2Renasys AS
- Method and an apparatus for washing a crude lignin, a soluble carbohydrate containing fraction, a solid fraction and their use28 Jul 2026US 12,692,285 B2Upm-Kymmene Corporation
- Conveyor-belt filtering device for mechanically cleaning a liquid21 Apr 2026US 12,605,659 B2FSM Frankenberger GmbH
- Filtration device, filtration method and filtration filter14 Apr 2026US 12,599,854 B2Murata Manufacturing Co., Ltd.
- Liquid solid separator recirculation systems10 Jun 2025US 12,324,998 B2
- Apparatus and method for solid-liquid separation13 Aug 2026US 2026/0233134 A1Betolar Oyj
- Micro-fibre filter cartridge and filter unit23 Jul 2026US 2026/0208078 A1
- Machine chip and coolant flow cleaning system for endless belt conveyor9 Jul 2026US 2026/0192409 A1Mayfran International B.V.
- Filtration system25 Jun 2026US 2026/0175151 A1Mitsubishi Kakoki Kaisha, Ltd.
- Apparatus for manufacturing electrode films and method of operation for the apparatus23 Apr 2026US 2026/0112599 A1Samsung SDI.Co., Ltd.
Most cited
By later US patents
- Method and apparatus for displacing liquor from a slurry of particulate solid material60US 5,643,468 AImperial Chemical Industries PLC · 1997
- Scraper blade assembly60US 5,865,997 AAshbrook Corporation · 1999
- Drilling mud cleaning apparatus56US 4,350,591 A1982
- Gumbo separator50US 5,921,399 ADerrick Corporation · 1999
- Cleaning device for waste water48US 6,942,786 B1Salnes Filter AS · 2005