F24H 9/2064
For air heaters
Official title: {for air heaters}
F24H9/2064 (For air heaters) appears on 322 US grants and 356 published applications in this corpus.
Search patents in F24H- Granted patents
- 322
- Published applications
- 356
- Assignees
- 197
- Inventors
- 650
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 12 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 3 |
| 2003 | 5 | 4 |
| 2004 | 3 | 3 |
| 2005 | 3 | 6 |
| 2006 | 5 | 4 |
| 2007 | 1 | 5 |
| 2008 | 0 | 7 |
| 2009 | 3 | 8 |
| 2010 | 2 | 8 |
| 2011 | 5 | 17 |
| 2012 | 4 | 23 |
| 2013 | 10 | 23 |
| 2014 | 15 | 20 |
| 2015 | 8 | 31 |
| 2016 | 20 | 18 |
| 2017 | 14 | 23 |
| 2018 | 23 | 13 |
| 2019 | 18 | 19 |
| 2020 | 10 | 20 |
| 2021 | 17 | 19 |
| 2022 | 9 | 21 |
| 2023 | 14 | 18 |
| 2024 | 21 | 22 |
| 2025 | 15 | 12 |
| 2026 | 9 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Furnace control systems and methods25 Aug 2026US 12,716,617 B2Johnson Controls Light Commercial IP GmbH
- Driving part of warm air heater and warm air heater21 Jul 2026US 12,687,320 B2Shanghai Kohler Electronics, Ltd.
- Furnace30 Jun 2026US 12,669,266 B2Fire Chief Industries LLC
- Foot-operated control switch and space heater23 Jun 2026US 12,665,144 B2Livyi LLC
- Method for producing a heating device, and heating device16 Jun 2026US 12,656,020 B2Truma Gerätetechnik GmbH & Co. KG
- Portable Towel Warming Apparatus with Enhanced Heat Distribution and Thermal Insulation27 Aug 2026US 2026/0248328 A1
- Hybrid duct device for heating an air flow16 Jul 2026US 2026/0202092 A1Fives Itas S.P.A.
- Air supply pipe and air heating apparatus including the same2 Jul 2026US 2026/0185742 A1Kyungdong Navien Co., Ltd.
- Air handling unit with a heating module11 Jun 2026US 2026/0160431 A1Carrier Corporation
- Waste-heat recirculating system, method of installation and method of use thereof30 Apr 2026US 2026/0117989 A1Highland Heat Harvesters Ltd
Most cited
By later US patents
- Multi-phase modular comfort controlled heating system131US 4,337,893 AEnergy Savings Parhelion · 1982
- Thermostatically controlled portable electric space heater with automatic temperature setback for energy saving96US 5,278,936 A1994
- Gas heater with alarm system91US 5,807,098 ADESA International, Inc. · 1998
- Furnace control apparatus having a circulator failure detection circuit for a downflow furnace56US 4,502,625 AHoneywell Inc. · 1985
- Electrically-powered portable space heater55US 4,518,847 ACrockett & Kelly, Inc. · 1985