F24D 5/02
Operating with discharge of hot air into the space or area to
Official title: operating with discharge of hot air into the space or area to be heated
F24D5/02 (Operating with discharge of hot air into the space or area to) appears on 214 US grants and 232 published applications in this corpus.
Search patents in F24D- Granted patents
- 214
- Published applications
- 232
- Assignees
- 121
- Inventors
- 474
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 7 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 5 |
| 2006 | 1 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 2 |
| 2009 | 1 | 5 |
| 2010 | 0 | 5 |
| 2011 | 1 | 8 |
| 2012 | 3 | 9 |
| 2013 | 3 | 13 |
| 2014 | 11 | 19 |
| 2015 | 7 | 25 |
| 2016 | 12 | 10 |
| 2017 | 16 | 24 |
| 2018 | 16 | 14 |
| 2019 | 18 | 15 |
| 2020 | 13 | 13 |
| 2021 | 12 | 22 |
| 2022 | 9 | 12 |
| 2023 | 14 | 13 |
| 2024 | 13 | 6 |
| 2025 | 6 | 8 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Push/pull furnace and methods related thereto14 Jul 2026US 12,680,693 B2Trane International Inc.
- Quick heat algorithm for modulating heating equipment14 Jul 2026US 12,680,719 B2Johnson Controls Light Commercial IP GmbH
- System for adjusting and controlling temperature of intelligent new energy farmhouse integrated with tunnel wind and solar energy7 Jul 2026US 12,674,586 B2Beijing Anxing Hi-Tech New Energy Development Co., Ltd.
- System and method for controlling HVAC systems5 May 2026US 12,618,579 B2Daikin Manufacturing Company, L.P.
- Flowrate determination system and method for a flow control valve14 Oct 2025US 12,442,556 B2Tyco Fire & Security GmbH
- Systems and Methods for Modulating Heating and/or Cooling Appliance Control Based on Return Air Temperature27 Aug 2026US 2026/0251337 A1Rheem Manufacturing Company
- Hybrid heating system with humidity control4 Jun 2026US 2026/0153253 A1Midea Group Co., Ltd.
- Waste-heat recirculating system, method of installation and method of use thereof30 Apr 2026US 2026/0117989 A1Highland Heat Harvesters Ltd
- Air heating apparatus12 Mar 2026US 2026/0071828 A1Kyungdong Navien Co., Ltd.
- Flowrate determination system and method for a flow control valve18 Dec 2025US 2025/0383111 A1Tyco Fire & Security GmbH
Most cited
By later US patents
- System and method for controlling temperature and humidity132US 6,199,388 B1Semco LLC · 2001
- Monitoring and recoverable protection of thermostat switching circuitry62US 8,659,302 B1Nest Labs, Inc. · 2014
- Air ventilation control system52US 4,776,385 A1988
- Solid refuse furnace42US 4,213,404 AEnergy Alternatives, Inc. · 1980
- Method of solar heating so as to reduce oil and gas consumption39US 3,994,276 A1976