F24F 3/1405
In which the humidity of the air is exclusively affected by contact
Official title: {in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit}
F24F3/1405 (In which the humidity of the air is exclusively affected by contact) appears on 363 US grants and 404 published applications in this corpus.
Search patents in F24F- Granted patents
- 363
- Published applications
- 404
- Assignees
- 184
- Inventors
- 756
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 4 | 4 |
| 2003 | 8 | 5 |
| 2004 | 5 | 10 |
| 2005 | 4 | 5 |
| 2006 | 3 | 4 |
| 2007 | 4 | 3 |
| 2008 | 0 | 6 |
| 2009 | 0 | 7 |
| 2010 | 2 | 12 |
| 2011 | 5 | 8 |
| 2012 | 4 | 8 |
| 2013 | 4 | 16 |
| 2014 | 9 | 15 |
| 2015 | 11 | 22 |
| 2016 | 7 | 22 |
| 2017 | 25 | 29 |
| 2018 | 21 | 39 |
| 2019 | 27 | 38 |
| 2020 | 30 | 26 |
| 2021 | 31 | 36 |
| 2022 | 20 | 24 |
| 2023 | 27 | 24 |
| 2024 | 20 | 12 |
| 2025 | 18 | 22 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for dehumidification using climate control systems11 Aug 2026US 12,704,283 B2Trane International Inc.
- Water level control method of air conditioner and air conditioner30 Jun 2026US 12,669,262 B2Hisense (Guangdong) Air Conditioning Co., Ltd.
- Dehumidifier with pump pick-up16 Jun 2026US 12,655,996 B2Midea Group Co., Ltd.
- Air conditioner for removing foreign substances from indoor heat exchanger and method of operating the same17 Mar 2026US 12,578,134 B2LG Electronics Inc.
- System and method for controlling temperature and water content of an airstream10 Mar 2026US 12,571,551 B2Airwatergreen Group AB
- Intelligent networked humidity control device16 Jul 2026US 2026/0202085 A1Microjet Technology Co., Ltd.
- Air conditioner for removing foreign substances from indoor heat exchanger and method of operating the same25 Jun 2026US 2026/0177302 A1LG Electronics Inc.
- Systems and Methods for Commercial Airstreem Pretreatment5 Mar 2026US 2026/0063312 A1
- Air pollution cleaning smart network mechanism system for controlling indoor air temperature and humidity26 Feb 2026US 2026/0055918 A1Microjet Technology Co., Ltd.
- Gas dehumidification system29 Jan 2026US 2026/0028933 A1
Most cited
By later US patents
- Method of air conditioning105US 4,319,461 AThe University of Adelaide · 1982
- Desiccant refrigerant dehumidifier104US 6,557,365 B2Munters Corporation · 2003
- Air conditioning and method of dehumidifier control101US 4,942,740 ALuminis Pty. Ltd. · 1990
- Air purification system and method100US 7,077,892 B22006
- System and method for high-efficiency air cooling and dehumidification91US 5,309,725 A1994