A01D 45/021
Cornheaders
Official title: {Cornheaders}
A01D45/021 (Cornheaders) appears on 451 US grants and 462 published applications in this corpus.
Search patents in A01D- Granted patents
- 451
- Published applications
- 462
- Assignees
- 106
- Inventors
- 661
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 6 | 0 |
| 1980 | 6 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 15 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 2 |
| 2002 | 6 | 5 |
| 2003 | 4 | 6 |
| 2004 | 1 | 6 |
| 2005 | 0 | 2 |
| 2006 | 5 | 2 |
| 2007 | 4 | 10 |
| 2008 | 7 | 3 |
| 2009 | 4 | 6 |
| 2010 | 6 | 11 |
| 2011 | 10 | 10 |
| 2012 | 9 | 23 |
| 2013 | 9 | 11 |
| 2014 | 15 | 34 |
| 2015 | 16 | 22 |
| 2016 | 14 | 22 |
| 2017 | 30 | 33 |
| 2018 | 34 | 29 |
| 2019 | 28 | 21 |
| 2020 | 20 | 32 |
| 2021 | 22 | 25 |
| 2022 | 17 | 20 |
| 2023 | 13 | 13 |
| 2024 | 20 | 58 |
| 2025 | 29 | 34 |
| 2026 | 23 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flexing header with float system6 Oct 2026US 12,751,366 B2MacDon Industries Ltd.
- Systems and methods for predictive end divider control15 Sep 2026US 12,733,563 B2Deere & Company
- Systems and methods for resolving header slip and stall events15 Sep 2026US 12,733,583 B2Deere & Company
- Stalk-diameter sensing system with multi-material stalk feeler15 Sep 2026US 12,733,587 B2Deere & Company
- Stalk-diameter sensing system with stalk feeler damper15 Sep 2026US 12,736,323 B2Deere & Company
- Ear saver16 Jul 2026US 2026/0198423 A1
- Combine harvesters for use in harvesting corn, and related methods9 Jul 2026US 2026/0194459 A1Monsanto Technology LLC
- Agricultural harvesting systems and related devices and methods21 May 2026US 2026/0137029 A1Ag Leader Technology
- Harvesting system for row-by-row control of a harvester23 Apr 2026US 2026/0107878 A1Ag Leader Technology
- Deck plate control system for an agricultural harvester16 Apr 2026US 2026/0101846 A1CNH Industrial America LLC
Most cited
By later US patents
- Multi-sensor crop yield determination96US 9,578,808 B2Deere & Company · 2017
- System for measuring plant attributes using a priori plant maps92US 10,039,231 B2Deere & Company · 2018
- Yield estimation91US 9,903,979 B2Deere & Company · 2018
- Yield estimation90US 10,295,703 B2Deere & Company · 2019
- Heads-up display for an agricultural combine75US 10,703,277 B1CNH Industrial America LLC · 2020