A01C 7/044
Pneumatic seed wheels
Official title: {Pneumatic seed wheels}
A01C7/044 (Pneumatic seed wheels) appears on 576 US grants and 568 published applications in this corpus.
Search patents in A01C- Granted patents
- 576
- Published applications
- 568
- Assignees
- 121
- Inventors
- 619
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 7 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 1 |
| 2002 | 7 | 5 |
| 2003 | 10 | 9 |
| 2004 | 8 | 1 |
| 2005 | 3 | 5 |
| 2006 | 4 | 6 |
| 2007 | 5 | 5 |
| 2008 | 6 | 7 |
| 2009 | 6 | 6 |
| 2010 | 11 | 17 |
| 2011 | 2 | 11 |
| 2012 | 9 | 10 |
| 2013 | 13 | 10 |
| 2014 | 15 | 29 |
| 2015 | 19 | 50 |
| 2016 | 34 | 39 |
| 2017 | 46 | 39 |
| 2018 | 41 | 39 |
| 2019 | 39 | 53 |
| 2020 | 43 | 38 |
| 2021 | 22 | 51 |
| 2022 | 30 | 29 |
| 2023 | 37 | 20 |
| 2024 | 26 | 29 |
| 2025 | 34 | 26 |
| 2026 | 14 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Seed-metering device having multiple cavities and magnetic seed protection assembly23 Jun 2026US 12,660,740 B2Anhui Agricultural University
- Grain-singulating apparatus with separating device, and seeder with grain-singulating apparatus2 Jun 2026US 12,642,162 B2Amazonen-Werke H. Dreyer SE & Co. KG
- Singulating device, agricultural implement and method of distributing granular material to ground2 Jun 2026US 12,642,164 B2Väderstad Holding AB
- Seed placement device5 May 2026US 12,616,082 B2Deere & Company
- Seed meter with vacuum producing device and controlled outlet pressure21 Apr 2026US 12,604,792 B2Deere & Company
- Distribution assembly for a seed drill with an associated clearance adjustment device and associated seed drill8 Oct 2026US 2026/0305520 A1Kuhn S. A.
- Agricultural Singulation Device for Singulating Particulate Material10 Sep 2026US 2026/0262559 A1Amazonen-Werke H. Dreyer SE & Co. KG
- Seed Discs For Use With Seed Meters And Planters10 Sep 2026US 2026/0262560 A1Monsanto Technology LLC
- Valve for seed metering system3 Sep 2026US 2026/0256046 A1Deere & Company
- Agricultural seed meter and related devices, systems, and methods13 Aug 2026US 2026/0231850 A1Ag Leader Technology
Most cited
By later US patents
- Vacuum seed meter180US 5,170,909 ADeere & Company · 1992
- Vacuum seed meter and dispensing apparatus118US 6,516,733 B1Precision Planting LLC · 2003
- Agricultural seeding apparatus and method for seed placement synchronization between multiple rows97US 7,726,251 B1Deere & Company · 2010
- Enhanced statistical/status display95US 6,091,997 ACase Corporation · 2000
- Seed meter disk for use with sunflower and other seeds of long, slender shape91US 4,600,122 ADeere & Company · 1986