B03B 5/54
Drag classifiers
B03B5/54 (Drag classifiers) appears on 6 US grants and 0 published applications in this corpus.
Search patents in B03B- Granted patents
- 6
- Published applications
- 0
- Assignees
- 4
- Inventors
- 8
- Latest grant
- 12 Mar 1996
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Mud pan apparatus12 Mar 1996US 5,498,120 A
- Produce, rock and debris separator26 Jul 1988US 4,759,841 A
- Battery reclaiming method and apparatus9 Aug 1983US 4,397,424 AM. A. Industries, Inc.
- Truck mixer washout reclaim system25 Aug 1981US 4,285,808 ARexnord Inc.
- Apparatus for washing grossly soiled products of plastic material for subsequent re-use15 Aug 1978US 4,106,518 AMaschinenfabrik Buckau Aktiengesellschaft
No published applications in this class yet.
Most cited
By later US patents
- Process for cleaning comminuted plastic material31US 4,073,661 AMaschinenfabrik Buckau R. Wolf Aktiengesellschaft · 1978
- Battery reclaiming method and apparatus11US 4,397,424 AM. A. Industries, Inc. · 1983
- Produce, rock and debris separator10US 4,759,841 A1988
- Truck mixer washout reclaim system9US 4,285,808 ARexnord Inc. · 1981
- Apparatus for washing grossly soiled products of plastic material for subsequent re-use3US 4,106,518 AMaschinenfabrik Buckau Aktiengesellschaft · 1978