A01B 21/083
Of the type comprising four individual disk groups each pivotally connected at
Official title: {of the type comprising four individual disk groups each pivotally connected at fixed locations to a substantially rigid frame}
A01B21/083 (Of the type comprising four individual disk groups each pivotally connected at) appears on 31 US grants and 29 published applications in this corpus.
Search patents in A01B- Granted patents
- 31
- Published applications
- 29
- Assignees
- 13
- Inventors
- 50
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 3 |
| 2011 | 2 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 10 |
| 2016 | 6 | 3 |
| 2017 | 4 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Harrow device and harrow disc8 Jul 2025US 12,349,611 B2
- Device for adjusting the angle for disc sections for agricultural harrows, and agricultural harrow19 Nov 2024US 12,144,274 B2Marchesan Implementos E Máquinas Agrícolas Tatú S/A
- System and method for adjusting the spacing between ground engaging tools of an agricultural implement14 Jun 2022US 11,357,156 B2CNH Industrial America LLC
- Middle breaker for a tillage implement15 Sep 2020US 10,772,252 B2Deere & Company
- Tillage implement with preset disk frame angle10 Dec 2019US 10,499,552 B2CNH Industrial America LLC
- Agricultural tillage implement and assemblies21 May 2026US 2026/0137016 A1K S Paterson Nominees Pty Ltd
- Disc blade angle control system for an agricultural implement3 Oct 2024US 2024/0324481 A1CNH Industrial America LLC
- Harrow device and harrow disc28 Mar 2024US 2024/0099172 A1
- Device for adjusting the angle for disck sections for agricultural harrows, and agricultural harrow23 Jun 2022US 2022/0192074 A1Marchesan Implementos E Máquinas Agrícolas Tatú S/A
- System and method for adjusting the spacing between ground engaging tools of an agricultural implement25 Mar 2021US 2021/0084803 A1CNH Industrial America LLC
Most cited
By later US patents
- Hydraulic down pressure control system for an agricultural implement60US 8,776,702 B2Dawn Equipment Company · 2014
- Mulch-till ripper49US 6,557,646 B1Case Corporation · 2003
- Hydraulic angling mechanism for disc harrow gangs41US 4,180,135 AInternational Harvester Company · 1979
- Disk harrow assembly28US 5,267,619 ACase Corporation · 1993
- Disc frame vibration dampening system16US 7,578,356 B2CNH America LLC · 2009