A01B 3/462
Alternating ploughs with frame rotating about a vertical axis
Official title: {Alternating ploughs with frame rotating about a vertical axis}
A01B3/462 (Alternating ploughs with frame rotating about a vertical axis) appears on 6 US grants and 1 published applications in this corpus.
Search patents in A01B- Granted patents
- 6
- Published applications
- 1
- Assignees
- 3
- Inventors
- 5
- Latest grant
- 30 Jun 1998
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Bi-directional moldboards supports used in moldboard plows to carry out conservation tillage30 Jun 1998US 5,771,979 AIndustrias John Deere S.A.de C.V.
- Reversible plow7 Jan 1992US 5,078,217 A
- Reversible plow31 Dec 1991US 5,076,368 A
- Reversible moldboard plow18 Jun 1991US 5,024,281 ALong Manufacturing N.C., Inc.
- Reversible plow4 Jun 1991US 5,020,603 A
Most cited
By later US patents