B01D 33/747
Moving during the filtration period
Official title: {moving during the filtration period}
B01D33/747 (Moving during the filtration period) appears on 11 US grants and 1 published applications in this corpus.
Search patents in B01D- Granted patents
- 11
- Published applications
- 1
- Assignees
- 8
- Inventors
- 10
- Latest grant
- 9 Oct 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Distributor for rotary filter and rotary filter equipped therewith9 Oct 2007US 7,279,030 B2Gevers & Vander Haeghen SA
- Vacuum belt filter apparatus enclosed in a pressurized chamber and related method of filtration23 Sep 2003US 6,622,870 B1Pannevis B. V.
- Endless belt filter12 Oct 1999US 5,965,020 AD & C Limited
- Separating device9 Sep 1997US 5,665,225 APannevis B. V.
- Device for separating liquid and solid material out of a mixture3 May 1994US 5,308,487 APannevis B. V.
Most cited
By later US patents
- Method for dewatering sludge32US 4,101,400 AMachinefabriek W. Hubert & Co. B.V. · 1978
- Method and device for separating liquids and solids from a mixture23US 4,038,193 ADe Gooijer's Patent B.V. · 1977
- Method of and apparatus for filtering a slurry11US 4,826,607 ASteetley Quarry Products Limited · 1989
- Vacuum belt filter apparatus enclosed in a pressurized chamber and related method of filtration11US 6,622,870 B1Pannevis B. V. · 2003
- Horizontal vacuum belt filter10US 4,495,070 A1985