A01C 15/04
Fertiliser distributors: using blowers
Official title: using blowers
A01C15/04 (Fertiliser distributors: using blowers) appears on 242 US grants and 182 published applications in this corpus.
Search patents in A01C- Granted patents
- 242
- Published applications
- 182
- Assignees
- 83
- Inventors
- 320
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 9 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 8 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 2 |
| 2002 | 2 | 2 |
| 2003 | 4 | 1 |
| 2004 | 3 | 1 |
| 2005 | 2 | 1 |
| 2006 | 3 | 1 |
| 2007 | 0 | 0 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 2 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 0 | 0 |
| 2014 | 1 | 4 |
| 2015 | 2 | 6 |
| 2016 | 6 | 9 |
| 2017 | 6 | 8 |
| 2018 | 14 | 19 |
| 2019 | 13 | 21 |
| 2020 | 21 | 15 |
| 2021 | 7 | 34 |
| 2022 | 19 | 11 |
| 2023 | 12 | 7 |
| 2024 | 15 | 13 |
| 2025 | 6 | 15 |
| 2026 | 7 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pneumatic conveyor device for granular material and agricultural distributing machine18 Aug 2026US 12,708,065 B2Lemken GmbH & Co.KG
- Agricultural distribution machine for spreading granular material28 Jul 2026US 12,690,510 B2Amazonen-Werke H. Dreyer SE & Co. KG
- Air seeder pneumatic control system9 Jun 2026US 12,648,511 B2Deere & Company
- Fertilizer blockage cleaning system for an agricultural fertilizer spreader12 May 2026US 12,622,346 B2Deere & Company
- Automatically detecting or estimating material delivery delays and machine control12 May 2026US 12,623,863 B2Deere & Company
- Air seeder pneumatic control system3 Sep 2026US 2026/0256051 A1Deere & Company
- Metering System for an Agricultural Distribution Machine and Method for Metering20 Aug 2026US 2026/0242159 A1Amazonen-Werke H. Dreyer SE & Co. KG
- Boom spreader with sectional control13 Aug 2026US 2026/0231855 A1
- Intelligent Numerical Control Air-Suction Seed Metering Device23 Jul 2026US 2026/0206676 A1Shijiazhuang Oushen Agricultural Machinery Co., Ltd.
- Pneumatic fertilizer spreader and method for operating a pneumatic fertilizer spreader18 Jun 2026US 2026/0165225 A1HORSCH LEEB Application Systems GmbH
Most cited
By later US patents
- Pneumatic system for conveying granular material131US 4,280,419 AInternational Harvester Company · 1981
- Seed distribution system for planters and drills97US 5,379,706 AAGCO Corporation · 1995
- Fertilizer divider for dual air system90US 4,779,765 ADeere & Company · 1988
- Seeding device with air distribution system86US 4,296,695 AWil-Rich, Inc. · 1981
- Plenum damper and baffle plate arrangement for pneumatic distribution system78US 5,979,343 ADeere & Company · 1999