A01C 23/02
Special arrangements for delivering the liquid directly into the soil
A01C23/02 (Special arrangements for delivering the liquid directly into the soil) appears on 556 US grants and 420 published applications in this corpus.
Search patents in A01C- Granted patents
- 556
- Published applications
- 420
- Assignees
- 198
- Inventors
- 701
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 10 | 0 |
| 1978 | 10 | 0 |
| 1979 | 5 | 0 |
| 1980 | 8 | 0 |
| 1981 | 7 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 9 | 0 |
| 1985 | 2 | 0 |
| 1986 | 17 | 0 |
| 1987 | 10 | 0 |
| 1988 | 8 | 0 |
| 1989 | 7 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 6 | 0 |
| 1994 | 9 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 11 | 0 |
| 1999 | 10 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 1 |
| 2002 | 13 | 13 |
| 2003 | 6 | 11 |
| 2004 | 11 | 12 |
| 2005 | 9 | 11 |
| 2006 | 11 | 6 |
| 2007 | 5 | 12 |
| 2008 | 5 | 8 |
| 2009 | 10 | 11 |
| 2010 | 13 | 13 |
| 2011 | 6 | 9 |
| 2012 | 10 | 13 |
| 2013 | 5 | 12 |
| 2014 | 15 | 18 |
| 2015 | 13 | 16 |
| 2016 | 13 | 22 |
| 2017 | 18 | 30 |
| 2018 | 32 | 32 |
| 2019 | 23 | 40 |
| 2020 | 28 | 20 |
| 2021 | 16 | 24 |
| 2022 | 15 | 18 |
| 2023 | 20 | 20 |
| 2024 | 17 | 18 |
| 2025 | 29 | 27 |
| 2026 | 13 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Aeration type variable-rate fertilization scarifier for tea garden25 Aug 2026US 12,714,008 B2
- Apparatus for injecting manure into the ground11 Aug 2026US 12,702,082 B2
- Systems, methods and apparatuses for liquid manure spreading14 Jul 2026US 12,677,731 B2
- Systems and methods for handling fluid for application to agricultural fields23 Jun 2026US 12,660,744 B2Capstan Ag Systems, Inc.
- Y-drop attachment for an agricultural applicator23 Jun 2026US 12,660,745 B1
- Systems and methods for handling fluid for application to agricultural fields1 Oct 2026US 2026/0293796 A1Capstan Ag Systems, Inc.
- System and method for determining flow rates of liquid fertilizers18 Jun 2026US 2026/0165234 A1Precision Planting LLC
- Implements and application units for placement of applications with respect to agricultural plants of agricultural fields12 Mar 2026US 2026/0068810 A1Precision Planting LLC
- Root feeder25 Dec 2025US 2025/0386781 A1Lawn & Garden, LLC
- Devices, systems, and methods for machinery monitoring and reporting4 Dec 2025US 2025/0367695 A1Ag Leader Technology
Most cited
By later US patents
- Liquid dispenser for seed planter188US 5,730,074 AFarmer Fabrications, Inc. · 1998
- Soil chemical sensor and precision agricultural chemical delivery system and method154US 5,033,397 AAguila Corporation · 1991
- High pressure liquid containment joint for hydraulic aerator149US 5,291,842 AThe Toro Company · 1994
- Liquid dispenser for seed planter128US 5,852,982 AFarmer Fabrications, Inc. · 1998
- Liquid distribution apparatus for distributing liquid into a seed furrow123US 6,453,832 B12002