A01C 23/047
Spraying of liquid fertilisers
Official title: {Spraying of liquid fertilisers}
A01C23/047 (Spraying of liquid fertilisers) appears on 343 US grants and 476 published applications in this corpus.
Search patents in A01C- Granted patents
- 343
- Published applications
- 476
- Assignees
- 162
- Inventors
- 710
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 3 |
| 2003 | 2 | 1 |
| 2004 | 5 | 7 |
| 2005 | 4 | 3 |
| 2006 | 4 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 0 |
| 2011 | 2 | 7 |
| 2012 | 0 | 5 |
| 2013 | 0 | 8 |
| 2014 | 4 | 10 |
| 2015 | 8 | 23 |
| 2016 | 19 | 23 |
| 2017 | 11 | 33 |
| 2018 | 26 | 21 |
| 2019 | 36 | 52 |
| 2020 | 31 | 40 |
| 2021 | 21 | 43 |
| 2022 | 26 | 55 |
| 2023 | 36 | 34 |
| 2024 | 35 | 44 |
| 2025 | 30 | 34 |
| 2026 | 29 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for an agricultural applicator8 Sep 2026US 12,728,436 B2CNH Industrial America LLC
- Methods of communicating aspects of AG based operations25 Aug 2026US 12,713,994 B2Kinze Manufacturing, Inc.
- Spraying machine25 Aug 2026US 12,714,087 B2
- Valve control systems and methods18 Aug 2026US 12,708,918 B2Raven Industries, Inc.
- Multifunctional nozzle assembly for agricultural vehicles18 Aug 2026US 12,708,922 B2Raven Industries, Inc.
- On-Boom Sectional Recirculating Injection System8 Oct 2026US 2026/0305596 A1Latitude Limited
- Aerial vehicle management system and aerial vehicle8 Oct 2026US 2026/0310223 A1Kubota Corporation
- A sprayer1 Oct 2026US 2026/0295612 A1IVM IP Pty Ltd
- Liquid distribution systems, crop sprayers, and related methods1 Oct 2026US 2026/0295613 A1Precision Planting LLC
- Valve control systems and methods1 Oct 2026US 2026/0295618 A1Raven Industries, Inc.
Most cited
By later US patents
- Flow control and operation monitoring system for individual spray nozzles119US 7,311,004 B2Capstan Ag Systems, Inc. · 2007
- Suspension system for a work vehicle93US 6,343,661 B12002
- Agricultural product application tracking and control81US 6,522,948 B1Flexi-Coil Ltd. · 2003
- Control system for an agricultural implement72US 6,678,580 B2Case Corporation · 2004
- Method for dispensing an agricultural product71US 6,708,080 B2Case Corporation · 2004