F24F 3/048
With temperature control at constant rate of air-flow
Official title: with temperature control at constant rate of air-flow
F24F3/048 (With temperature control at constant rate of air-flow) appears on 115 US grants and 92 published applications in this corpus.
Search patents in F24F- Granted patents
- 115
- Published applications
- 92
- Assignees
- 53
- Inventors
- 181
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 3 |
| 2012 | 0 | 3 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 3 | 3 |
| 2016 | 2 | 3 |
| 2017 | 4 | 5 |
| 2018 | 3 | 0 |
| 2019 | 2 | 10 |
| 2020 | 5 | 26 |
| 2021 | 9 | 12 |
| 2022 | 5 | 5 |
| 2023 | 10 | 7 |
| 2024 | 7 | 6 |
| 2025 | 5 | 3 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- HVAC system using reheat from alternative heat source15 Sep 2026US 12,736,236 B2Tyco Fire & Security GmbH
- Air-mixing plenum and method of mixing flows of air therewith24 Feb 2026US 12,560,340 B2Ingénia Technologies Inc.
- Systems and methods for optimizing control of an air handling unit (AHU) to minimize electrical and thermal energy consumption of the ahu13 Jan 2026US 12,523,384 B2Schneider Electric Industries SAS
- Linearization of airflow through zone dampers of an HVAC system16 Sep 2025US 12,416,426 B2Rheem Manufacturing Company
- Multi-zone variable refrigerant flow heating/cooling unit22 Jul 2025US 12,366,370 B2MJC, Inc.
- Multi-zone variable refrigerant flow heating/cooling unit6 Nov 2025US 2025/0341320 A1MJC, Inc.
- Air-conditioning system6 Nov 2025US 2025/0341338 A1Fh Alliance Inc.
- Hvac system using reheat from alternative heat source29 May 2025US 2025/0172303 A1Tyco Fire & Security GmbH
- Systems and methods for reheat control of an hvac system11 Jul 2024US 2024/0230177 A9Johnson Controls Tyco IP Holdings LLP
- Air-mixing plenum and method of mixing flows of air therewith23 May 2024US 2024/0167702 A1Ingénia Technologies Inc.
Most cited
By later US patents
- Personal comfort conditioner136US 4,905,475 A1990
- Energy conservation air conditioning system69US 3,979,922 AHoneywell Inc. · 1976
- Air-conditioning system and operation method thereof60US 5,103,896 AKabushiki Kaisha Toshiba · 1992
- Method and apparatus for controlling air-conditioning systems51US 4,136,732 ARanco Incorporated · 1979
- Central air conditioning equipment51US 4,406,397 ATopre Corporation · 1983