A01F 12/18
Threshing devices
A01F12/18 (Threshing devices) appears on 391 US grants and 327 published applications in this corpus.
Search patents in A01F- Granted patents
- 391
- Published applications
- 327
- Assignees
- 84
- Inventors
- 592
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 0 |
| 2002 | 11 | 8 |
| 2003 | 3 | 4 |
| 2004 | 4 | 2 |
| 2005 | 3 | 7 |
| 2006 | 7 | 9 |
| 2007 | 5 | 6 |
| 2008 | 6 | 5 |
| 2009 | 4 | 7 |
| 2010 | 7 | 1 |
| 2011 | 2 | 6 |
| 2012 | 9 | 5 |
| 2013 | 4 | 4 |
| 2014 | 6 | 12 |
| 2015 | 6 | 8 |
| 2016 | 7 | 20 |
| 2017 | 19 | 24 |
| 2018 | 18 | 23 |
| 2019 | 25 | 34 |
| 2020 | 25 | 22 |
| 2021 | 21 | 27 |
| 2022 | 20 | 17 |
| 2023 | 7 | 19 |
| 2024 | 23 | 30 |
| 2025 | 21 | 17 |
| 2026 | 19 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A01F 12/26Multi-part threshing concaves109
- A01F 12/28Devices for adjusting the concaves106
- A01F 12/24One-part threshing concaves84
- A01F 12/22Threshing cylinders with teeth65
- A01F 12/20Threshing cylinders with ribs43
- A01F 12/181Adjustable threshing mechanisms37
- A01F 12/184Cleaning means28
- A01F 12/185Mounting means21
Recent patents
- Adjustment and release unit for a concave of a threshing system of a combine harvester8 Sep 2026US 12,727,546 B2AGCO International GmbH
- Concave for a twin rotor combine harvester25 Aug 2026US 12,714,028 B2Bushel Plus Ltd.
- Combine harvester and threshing drum for a threshing device of a combine harvester4 Aug 2026US 12,696,840 B2CLAAS Selbstfahrende Erntemaschinen GmbH
- Combine harvesters having reversible return systems, and related methods21 Jul 2026US 12,685,268 B2AGCO International GmbH
- Peeling, screening and cleaning device for Torreya grandis ‘Merrillii’s14 Jul 2026US 12,677,749 B2Anhui Agricultural University
- Concave Cover Plates for Improving Operational Performance in a Combine Harvester13 Aug 2026US 2026/0231863 A1
- Combine harvester concave frame assembly23 Jul 2026US 2026/0206685 A1
- Bypass system for determining separator grain loss16 Jul 2026US 2026/0198420 A1Deere & Company
- Systems and kits for regulating the flow of material other than grain through common concaves while simultaneously equalizing the flow of grain through common concaves9 Jul 2026US 2026/0191144 A1Calmer Holding Company, LLC
- Combine harvesters for use in harvesting corn, and related methods9 Jul 2026US 2026/0194459 A1Monsanto Technology LLC
Most cited
By later US patents
- Rotary combine72US 5,489,239 ACase Corporation · 1996
- Concave assembly and support structure for a rotary combine66US 6,358,142 B1Case Corporation · 2002
- Separating grate for a grain harvester64US 4,875,891 ADeere & Company · 1989
- Concave for an agricultural combine62US 6,193,604 B1Deere & Company · 2001
- Concave with an array of longitudinally notched spaced apart threshing elements49US 8,454,416 B12013