A01G 9/246
Air-conditioning systems
Official title: {Air-conditioning systems}
A01G9/246 (Air-conditioning systems) appears on 368 US grants and 608 published applications in this corpus.
Search patents in A01G- Granted patents
- 368
- Published applications
- 608
- Assignees
- 326
- Inventors
- 1,075
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 0 | 0 |
| 1991 | 6 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 2 |
| 2004 | 2 | 3 |
| 2005 | 0 | 2 |
| 2006 | 0 | 3 |
| 2007 | 3 | 2 |
| 2008 | 0 | 5 |
| 2009 | 0 | 4 |
| 2010 | 2 | 3 |
| 2011 | 4 | 20 |
| 2012 | 3 | 4 |
| 2013 | 2 | 6 |
| 2014 | 2 | 7 |
| 2015 | 2 | 13 |
| 2016 | 3 | 20 |
| 2017 | 7 | 23 |
| 2018 | 20 | 52 |
| 2019 | 17 | 59 |
| 2020 | 28 | 55 |
| 2021 | 48 | 61 |
| 2022 | 27 | 63 |
| 2023 | 42 | 82 |
| 2024 | 28 | 46 |
| 2025 | 41 | 52 |
| 2026 | 26 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vertical farm system25 Aug 2026US 12,714,035 B2Ono Exponential Farming S.R.L.
- Greenhouse and forced greenhouse climate control system and method14 Jul 2026US 12,677,760 B2Houweling Intellectual Properties, Inc.
- Air duct for distributing air in a greenhouse23 Jun 2026US 12,660,765 B2Cooling-Global S.R.O.
- Indoor horticulture system26 May 2026US 12,635,616 B1
- Method and apparatus for high-density indoor farming12 May 2026US 12,622,366 B280 Acres Urban Agriculture, Inc.
- Energy optimization apparatus1 Oct 2026US 2026/0302791 A1The Penn State Research Foundation
- Growth state estimation apparatus, plant management system, growth state estimation method, plant management method, and program13 Aug 2026US 2026/0231870 A1Yokogawa Electric Corporation
- Indoor intercropping systems, modules and methods thereof13 Aug 2026US 2026/0231882 A1R.P. Grow-Tec Innovations Ltd.
- Hydroponic System6 Aug 2026US 2026/0223793 A1
- Hydronic system23 Jul 2026US 2026/0206694 A10865894 B.C. Ltd. O/A Agritech North
Most cited
By later US patents
- Environmental control system148US 4,742,475 AIBG International, Inc. · 1988
- Method and apparatus for extracting carbon dioxide from air125US 7,708,806 B2Global Research Technologies, LLC · 2010
- Controlled environment agriculture facility and method for its operation86US 4,163,342 AGeneral Electric Company · 1979
- Plant cultivator and control system therefor63US 6,725,598 B2CCS Inc. · 2004
- Plant oriented control system55US 4,430,828 AOglevee Computer Systems · 1984