A01G 31/04
Hydroponic culture on conveyors
A01G31/04 (Hydroponic culture on conveyors) appears on 317 US grants and 484 published applications in this corpus.
Search patents in A01G- Granted patents
- 317
- Published applications
- 484
- Assignees
- 196
- Inventors
- 709
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 4 |
| 2005 | 2 | 4 |
| 2006 | 1 | 6 |
| 2007 | 3 | 1 |
| 2008 | 2 | 4 |
| 2009 | 3 | 5 |
| 2010 | 3 | 2 |
| 2011 | 2 | 7 |
| 2012 | 2 | 7 |
| 2013 | 3 | 4 |
| 2014 | 3 | 9 |
| 2015 | 2 | 15 |
| 2016 | 3 | 11 |
| 2017 | 11 | 20 |
| 2018 | 11 | 82 |
| 2019 | 17 | 31 |
| 2020 | 22 | 33 |
| 2021 | 44 | 43 |
| 2022 | 21 | 58 |
| 2023 | 30 | 51 |
| 2024 | 27 | 34 |
| 2025 | 37 | 37 |
| 2026 | 21 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for coupling a plurality of carts in a grow tower system6 Oct 2026US 12,751,387 B2Tavaci Technologies LLC
- Modular systems and methods for propagating plants in hydroponic and aquaponic environments22 Sep 2026US 12,740,519 B2
- Controller-operated vertical farming system using transportable modules18 Aug 2026US 12,708,079 B2Cloud Produce Inc.
- Methods and apparatus for indoor farming14 Jul 2026US 12,677,766 B2Beanstalk, Inc.
- System for rotating horticulture towers7 Jul 2026US 12,672,618 B211778757 Canada Inc.
- Automated hydroponics system1 Oct 2026US 2026/0293815 A1
- Methods and apparatus for indoor farming17 Sep 2026US 2026/0271847 A1Beanstalk, Inc.
- Cultivation trough and transport system3 Sep 2026US 2026/0256067 A1Pb Techniek B.V.
- Vertical rotary plant cultivation system27 Aug 2026US 2026/0248085 A1Clay Building Co., Ltd.
- System and methods for growing plants as an automated carousel using ras (recirculating aquaculture systems), aquaponics and soil as a medium13 Aug 2026US 2026/0231884 A1
Most cited
By later US patents
- Controlled environment agriculture facility and method for its operation86US 4,163,342 AGeneral Electric Company · 1979
- Apparatus for producing plants84US 4,028,847 AGeneral Mills, Inc. · 1977
- Method and apparatus for the improvement of storage of biochemical energy in plants71US 4,255,897 A1981
- Living plant growth support system59US 5,862,628 A1999
- Hydroponic culture system57US 4,965,962 AQ. P. Corporation · 1990