F24F 1/0059
Characterised by heat exchangers
Official title: characterised by heat exchangers
F24F1/0059 (Characterised by heat exchangers) appears on 717 US grants and 901 published applications in this corpus.
Search patents in F24F- Granted patents
- 717
- Published applications
- 901
- Assignees
- 285
- Inventors
- 2,066
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 11 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 11 | 0 |
| 1999 | 18 | 0 |
| 2000 | 8 | 0 |
| 2001 | 17 | 3 |
| 2002 | 13 | 6 |
| 2003 | 13 | 15 |
| 2004 | 10 | 19 |
| 2005 | 13 | 31 |
| 2006 | 12 | 30 |
| 2007 | 13 | 16 |
| 2008 | 7 | 34 |
| 2009 | 11 | 23 |
| 2010 | 16 | 33 |
| 2011 | 11 | 28 |
| 2012 | 16 | 29 |
| 2013 | 13 | 15 |
| 2014 | 17 | 32 |
| 2015 | 15 | 43 |
| 2016 | 23 | 28 |
| 2017 | 33 | 46 |
| 2018 | 36 | 49 |
| 2019 | 37 | 44 |
| 2020 | 23 | 67 |
| 2021 | 37 | 63 |
| 2022 | 46 | 59 |
| 2023 | 42 | 48 |
| 2024 | 58 | 64 |
| 2025 | 45 | 51 |
| 2026 | 28 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Circulating air module and circulating air module system29 Sep 2026US 12,747,870 B2Envola GmbH
- Indoor unit of air conditioner29 Sep 2026US 12,747,871 B2Fujitsu General Limited
- Air conditioner indoor unit and air conditioner15 Sep 2026US 12,736,231 B2Gd Midea Air-Conditioning Equipment Co., Ltd.
- Heat exchanger sealing plate for air conditioner, indoor unit and air conditioner25 Aug 2026US 12,716,595 B2Gd Midea Heating & Ventilating Equipment Co., Ltd.
- Indoor unit and air conditioner25 Aug 2026US 12,716,596 B2Daikin Industries, Ltd.
- Air conditioner indoor unit and air conditioner8 Oct 2026US 2026/0309341 A1Gd Midea Heating & Ventilating Equipment Co., Ltd.
- Air Conditioning System with Improved Supply Airflow8 Oct 2026US 2026/0309360 A1Rheem Manufacturing Company
- Air conditioner27 Aug 2026US 2026/0251345 A1Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd.
- Advanced heat pump with improved performance and control20 Aug 2026US 2026/0243445 A1Daikin Comfort Technologies Manufacturing, L.P.
- Air conditioner20 Aug 2026US 2026/0243463 A1Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd.
Most cited
By later US patents
- Scavenger energy converter system its new applications and its control systems239US 6,327,994 B12001
- Water-mist blower cooling system and its new applications215US 6,293,121 B12001
- Air hood136US 10,077,933 B2Colmac Coil Manufacturing, Inc. · 2018
- Method and apparatus of indirect-evaporation cooling118US 6,497,107 B2Idalex Technologies, Inc. · 2002
- Multi-stage indirect-direct evaporative cooling process and apparatus105US 4,380,910 AAztech International, Ltd. · 1983