E01B 2203/083
Ploughs
E01B2203/083 (Ploughs) appears on 21 US grants and 1 published applications in this corpus.
Search patents in E01B- Granted patents
- 21
- Published applications
- 1
- Assignees
- 11
- Inventors
- 18
- Latest grant
- 7 May 2002
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Ballast plow7 May 2002US 6,382,329 B2
- Machine for compacting and shaping a track bed8 Feb 2000US 6,021,717 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.
- Machine and method of distributing ballast17 Aug 1999US 5,937,763 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m. b. H.
- Ballast shoulder cleaner11 Feb 1997US 5,600,903 AKnox Kershaw, Inc.
- Railroad ballast spreading (plow) system3 Dec 1996US 5,579,593 ADifco, Inc.
Most cited
By later US patents
- Ballast distribution, regulation and reclaiming railroad maintenance device34US 5,284,097 ALoram Maintenance of Way, Inc. · 1994
- Mobile machine for receiving and distributing track ballast28US 5,094,018 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m. b. H. · 1992
- Track surfacing machine21US 4,257,331 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m. b. H. · 1981
- Mobile track leveling, lining and tamping apparatus19US 4,165,694 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m. b. H. · 1979
- Ballast tamping machine with flexible ballast conveying tubes mounted on the carrier frame of the tamping heads to place ballast at tamping tools14US 5,101,733 AFranz Plasser Bahnbaumaschinen-Industriegesellschaft m. b. H. · 1992