A01G 29/00
Root feeders
Official title: Root feeders; Injecting fertilisers into the roots
A01G29/00 (Root feeders) appears on 282 US grants and 354 published applications in this corpus.
Search patents in A01G- Granted patents
- 282
- Published applications
- 354
- Assignees
- 155
- Inventors
- 641
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 5 | 3 |
| 2003 | 6 | 8 |
| 2004 | 4 | 9 |
| 2005 | 2 | 7 |
| 2006 | 2 | 8 |
| 2007 | 3 | 4 |
| 2008 | 2 | 8 |
| 2009 | 3 | 14 |
| 2010 | 9 | 19 |
| 2011 | 8 | 14 |
| 2012 | 9 | 6 |
| 2013 | 6 | 10 |
| 2014 | 8 | 18 |
| 2015 | 8 | 18 |
| 2016 | 7 | 12 |
| 2017 | 8 | 20 |
| 2018 | 12 | 27 |
| 2019 | 12 | 26 |
| 2020 | 11 | 17 |
| 2021 | 14 | 12 |
| 2022 | 10 | 19 |
| 2023 | 9 | 20 |
| 2024 | 10 | 18 |
| 2025 | 17 | 28 |
| 2026 | 10 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Infiltrator device6 Oct 2026US 12,751,386 B2Universidad De Granada
- Sub-surface soil irrigation8 Sep 2026US 12,727,556 B2Irrovate (Pty) Ltd
- Vegetable support apparatus11 Aug 2026US 12,702,095 B2
- Root irrigation spike apparatus9 Jun 2026US 12,648,529 B2
- Smart plant monitoring and delivery system for maintaining healthy vegetation28 Apr 2026US 12,610,897 B2Root Matter LLC
- Agricultural applicator10 Sep 2026US 2026/0262566 A1
- Irrigation system and the use of such irrigation system20 Aug 2026US 2026/0240096 A1
- Method for utilizing poorly-soluble phosphoric acid and method for cultivating plant bodies20 Aug 2026US 2026/0242301 A1Aquasolution Corporation
- A device for the delivery of a liquid preparation to a plant substrate13 Aug 2026US 2026/0231881 A1
- Delivery assemblies and related methods for use in injecting fluids into plants6 Aug 2026US 2026/0223787 A1Invaio Sciences, Inc.
Most cited
By later US patents
- Multi-purpose turf stake and combination turf stake and frame construction assembly81US 5,881,495 ARoll-Tech, Inc. · 1999
- Nozzle structure for a root feeding device66US 4,705,218 ARoss Daniels, Inc. · 1987
- Plant watering and feeding stake59US 4,745,706 A1988
- Combined root barrier and watering collar arrangement53US 4,995,191 A1991
- Tree watering device51US 4,087,938 A1978