F24F 1/032
Characterised by heat exchangers
Official title: characterised by heat exchangers
F24F1/032 (Characterised by heat exchangers) appears on 178 US grants and 210 published applications in this corpus.
Search patents in F24F- Granted patents
- 178
- Published applications
- 210
- Assignees
- 111
- Inventors
- 609
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 2 |
| 2004 | 2 | 3 |
| 2005 | 1 | 2 |
| 2006 | 0 | 2 |
| 2007 | 1 | 3 |
| 2008 | 0 | 5 |
| 2009 | 1 | 2 |
| 2010 | 3 | 0 |
| 2011 | 0 | 1 |
| 2012 | 2 | 4 |
| 2013 | 1 | 3 |
| 2014 | 2 | 3 |
| 2015 | 3 | 9 |
| 2016 | 3 | 10 |
| 2017 | 2 | 15 |
| 2018 | 9 | 10 |
| 2019 | 7 | 9 |
| 2020 | 10 | 11 |
| 2021 | 8 | 24 |
| 2022 | 7 | 23 |
| 2023 | 21 | 24 |
| 2024 | 21 | 13 |
| 2025 | 14 | 19 |
| 2026 | 9 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Portable air conditioner15 Sep 2026US 12,736,233 B2Hephzibah Co., Ltd.
- Heat exchanging element and heat exchange ventilator1 Sep 2026US 12,723,765 B2Mitsubishi Electric Corporation
- Ventilation apparatus28 Jul 2026US 12,693,030 B2LG Electronics Inc.
- Air conditioner and control method thereof28 Jul 2026US 12,693,031 B2Samsung Electronics Co., Ltd.
- Portable air conditioner30 Jun 2026US 12,669,252 B2Hephzibah Co., Ltd.
- Volute component for air conditioner, and air conditioner17 Sep 2026US 2026/0276218 A1Gd Midea Air-Conditioning Equipment Co., Ltd.
- Air conditioner17 Sep 2026US 2026/0276219 A1Gd Midea Air-Conditioning Equipment Co., Ltd.
- Air conditioner20 Aug 2026US 2026/0243479 A1LG Electronics Inc.
- Air Conditioner Having First Heat Exchange Channel Through Which First Air Flows and Second Heat Exchange Channel Through Which Second Air Flows Upward11 Jun 2026US 2026/0160432 A1Brother Kogyo Kabushiki Kaisha
- Modular Air Handling Units for Commercial Applications28 May 2026US 2026/0146747 A1Rheem Manufacturing Company
Most cited
By later US patents
- Stepped capacity constant volume building air conditioning system61US 4,259,847 AThe Trane Company · 1981
- Humidity control apparatus48US 4,135,370 AHitachi, Ltd. · 1979
- Building fresh air ventilator system47US 4,018,266 ACommand-Aire Corporation · 1977
- Ceiling mounted apparatus for heating and cooling47US 6,250,373 B1Carrier Corporation · 2001
- Ion generator, and electric apparatus and air conditioning apparatus incorporating the same39US 7,256,979 B2Sharp Kabushiki Kaisha · 2007