A01C 21/002
Apparatus for sowing fertiliser
Official title: {Apparatus for sowing fertiliser; Fertiliser drill}
A01C21/002 (Apparatus for sowing fertiliser) appears on 152 US grants and 149 published applications in this corpus.
Search patents in A01C- Granted patents
- 152
- Published applications
- 149
- Assignees
- 76
- Inventors
- 287
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 2 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 4 |
| 2011 | 2 | 5 |
| 2012 | 2 | 4 |
| 2013 | 2 | 1 |
| 2014 | 6 | 12 |
| 2015 | 4 | 6 |
| 2016 | 7 | 13 |
| 2017 | 9 | 6 |
| 2018 | 11 | 10 |
| 2019 | 11 | 17 |
| 2020 | 14 | 20 |
| 2021 | 9 | 6 |
| 2022 | 10 | 11 |
| 2023 | 4 | 7 |
| 2024 | 7 | 9 |
| 2025 | 14 | 6 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fertilizer and row cleaner modules for agricultural row planter6 Oct 2026US 12,751,352 B2Harvest International, Inc.
- Aeration type variable-rate fertilization scarifier for tea garden25 Aug 2026US 12,714,008 B2
- Plunger mixer device12 May 2026US 12,623,192 B2Sub-Mergent Technologies, Inc.
- Method for plantation treatment of a plantation field with a variable application rate24 Mar 2026US 12,582,021 B2BASF Agro Trademarks GmbH
- Material delivery systems and methods3 Mar 2026US 12,565,313 B2FMC Corporation
- Method for reducing nitrogen and phosphorus emission in strawberry cultivation to mitigate continuous cropping obstacles in greenhouse8 Oct 2026US 2026/0305524 A1Shandong Academy of Agricultural Sciences
- Manure Applicator System3 Sep 2026US 2026/0256052 A1WiSys Technology Foundation, Inc.
- Material delivery systems and methods20 Aug 2026US 2026/0242059 A1FMC Corporation
- Agricultural implements comprising inertial sensors and related systems and methods11 Jun 2026US 2026/0157265 A1AGCO Corporation
- Modular Precision Agriculture System23 Apr 2026US 2026/0107886 A1Deere & Company
Most cited
By later US patents
- Apparatus for preparing soil for seed and method of using the apparatus107US 5,477,792 ADawn Equipment Company · 1995
- Apparatus for fertilizing soil with a V-blade plow87US 4,445,445 A1984
- No-till field implement82US 4,930,431 A1990
- Robotic platform and method for performing multiple functions in agricultural systems78US 9,265,187 B2RowBot Systems LLC · 2016
- Agricultural ground working implement76US 6,834,598 B2Deere & Company · 2004