F24F 3/12
Air-conditioning systems in which conditioned primary air is supplied from one or
Official title: characterised by the treatment of the air otherwise than by heating and cooling
F24F3/12 (Air-conditioning systems in which conditioned primary air is supplied from one or) appears on 3,264 US grants and 3,286 published applications in this corpus.
Search patents in F24F- Granted patents
- 3,264
- Published applications
- 3,286
- Assignees
- 1,525
- Inventors
- 6,304
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 22 | 0 |
| 1978 | 18 | 0 |
| 1979 | 18 | 0 |
| 1980 | 24 | 0 |
| 1981 | 23 | 0 |
| 1982 | 20 | 0 |
| 1983 | 14 | 0 |
| 1984 | 26 | 0 |
| 1985 | 22 | 0 |
| 1986 | 22 | 0 |
| 1987 | 33 | 0 |
| 1988 | 28 | 0 |
| 1989 | 41 | 0 |
| 1990 | 43 | 0 |
| 1991 | 52 | 0 |
| 1992 | 39 | 0 |
| 1993 | 49 | 0 |
| 1994 | 56 | 0 |
| 1995 | 45 | 0 |
| 1996 | 48 | 0 |
| 1997 | 61 | 0 |
| 1998 | 65 | 0 |
| 1999 | 72 | 0 |
| 2000 | 62 | 0 |
| 2001 | 69 | 22 |
| 2002 | 57 | 46 |
| 2003 | 61 | 63 |
| 2004 | 55 | 88 |
| 2005 | 60 | 81 |
| 2006 | 48 | 115 |
| 2007 | 58 | 70 |
| 2008 | 42 | 82 |
| 2009 | 31 | 89 |
| 2010 | 43 | 103 |
| 2011 | 55 | 83 |
| 2012 | 37 | 96 |
| 2013 | 54 | 111 |
| 2014 | 65 | 112 |
| 2015 | 85 | 128 |
| 2016 | 102 | 139 |
| 2017 | 102 | 179 |
| 2018 | 112 | 191 |
| 2019 | 172 | 205 |
| 2020 | 152 | 174 |
| 2021 | 165 | 225 |
| 2022 | 162 | 232 |
| 2023 | 159 | 202 |
| 2024 | 145 | 200 |
| 2025 | 155 | 152 |
| 2026 | 96 | 98 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cooling recovery system and method6 Oct 2026US 12,753,937 B2Heds Holdings LLC
- Filter unit29 Sep 2026US 12,746,493 B2Samsung Biologics Co., Ltd.
- Dehumidification unit and desiccant drum therein29 Sep 2026US 12,747,872 B2Trane International Inc.
- System and method for indirect evaporative cooling29 Sep 2026US 12,747,877 B2A.T.E. Enterprises Ltd.
- HVAC dehumidification system22 Sep 2026US 12,741,512 B2Mahle International GmbH
- Airframe system and method of controlling airflow8 Oct 2026US 2026/0306210 A1SLD Technology, Inc.
- High performance ventilated workspaces24 Sep 2026US 2026/0287185 A13Flow, Inc.
- Ventilation system17 Sep 2026US 2026/0276238 A1LG Electronics Inc.
- Method of storing photoresist coated substrates and semiconductor substrate container arrangement17 Sep 2026US 2026/0277106 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Dehumidifier10 Sep 2026US 2026/0266483 A1LG Electronics Inc.
Most cited
By later US patents
- Humidifier module for use in a gas humidification assembly398US 4,921,642 APuritan-Bennett Corporation · 1990
- Environmental sensor device with alarms333US 9,280,884 B1Oberon, Inc. · 2016
- Method and means of air conditioning214US 5,058,388 ALuminus Pty., Ltd. · 1991
- Dri-Pc humidity and temperature controller164US 4,841,733 A1989
- Air conditioner and controller for active dehumidification while using ambient air to prevent overcooling159US 6,427,454 B12002