A01B 3/46
Ploughs supported partly by tractor and partly by their own wheels
A01B3/46 (Ploughs supported partly by tractor and partly by their own wheels) appears on 41 US grants and 16 published applications in this corpus.
Search patents in A01B- Granted patents
- 41
- Published applications
- 16
- Assignees
- 21
- Inventors
- 60
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 2 | 1 |
| 2016 | 0 | 2 |
| 2017 | 0 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 3 |
| 2021 | 2 | 1 |
| 2022 | 2 | 1 |
| 2023 | 2 | 2 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Semi-mounted reversible plow19 May 2026US 12,628,718 B2Amazonen-Werke H. Dreyer SE & Co. KG
- Valve structure for driving reversible ploughs12 Sep 2023US 11,754,098 B2Oleodinamica Marchesini S.p.A.
- Agricultural implement27 Jun 2023US 11,684,001 B2CNH Industrial America LLC
- Plough18 Oct 2022US 11,470,757 B2CNH Industrial America LLC
- Agricultural implement14 Jun 2022US 11,357,155 B2CNH Industrial America LLC
- Semi-Mounted Reversible Plow19 Oct 2023US 2023/0329137 A1Amazonen-Werke H. Dreyer SE & Co. KG
- Agricultural implement6 Jul 2023US 2023/0210037 A1CNH Industrial America LLC
- Valve structure for driving reversible ploughs26 May 2022US 2022/0163055 A1Oleodinamica Marchesini S.p.A.
- Replaceable shank wear shin25 Feb 2021US 2021/0051831 A1CNH Industrial America LLC
- Agricultural implement19 Nov 2020US 2020/0359544 A1CNH Industrial America LLC
Most cited
By later US patents
- Steering for plow with adjustable plow bottoms39US 4,098,346 ADeere & Company · 1978
- Bidirectional plow with rotatable tool bar30US 5,400,859 A1995
- Plow system17US 4,186,806 AInternational Harvester Company · 1980
- Implement frame with caster wheel and lock therefor15US 4,119,156 AAllis-Chalmers Corporation · 1978
- Reversible plow15US 5,000,267 A1991