F24H 15/254
Room temperature
F24H15/254 (Room temperature) appears on 204 US grants and 230 published applications in this corpus.
Search patents in F24H- Granted patents
- 204
- Published applications
- 230
- Assignees
- 120
- Inventors
- 468
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 7 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 2 |
| 2002 | 4 | 0 |
| 2003 | 3 | 3 |
| 2004 | 3 | 2 |
| 2005 | 1 | 2 |
| 2006 | 3 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 0 | 6 |
| 2010 | 1 | 5 |
| 2011 | 3 | 7 |
| 2012 | 4 | 5 |
| 2013 | 2 | 12 |
| 2014 | 4 | 18 |
| 2015 | 4 | 19 |
| 2016 | 15 | 7 |
| 2017 | 16 | 17 |
| 2018 | 10 | 10 |
| 2019 | 15 | 9 |
| 2020 | 9 | 16 |
| 2021 | 7 | 21 |
| 2022 | 12 | 12 |
| 2023 | 15 | 9 |
| 2024 | 16 | 19 |
| 2025 | 9 | 13 |
| 2026 | 3 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heating systems9 Jun 2026US 12,650,244 B2Mixergy Limited
- Controlled routing of hydronic flow using a distribution area director17 Mar 2026US 12,578,115 B2Trane International Inc.
- Hybrid water heater10 Mar 2026US 12,571,560 B2Rheem Manufacturing Company
- Thermal system with exhaust heat exchanger18 Nov 2025US 12,474,079 B2Schlumberger Technology Corporation
- Step modulating swing tank for heat pump water heater4 Nov 2025US 12,460,839 B1Bock Water Heaters, Inc.
- Electric heating device with open structure and power regulator24 Sep 2026US 2026/0287208 A1Emmesteel S.R.L.
- Water heating system10 Sep 2026US 2026/0266509 A1Bradford White Corporation
- Method for controlling a supply fluid temperature of a heat pump of a floor heating system27 Aug 2026US 2026/0251319 A1
- Smart Fluid Heating Systems and Methods30 Jul 2026US 2026/0218917 A1Rheem Manufacturing Company
- Heat pump systems utilizing control and monitoring systems9 Jul 2026US 2026/0194262 A1Quilt Systems, Inc.
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
- Refrigeration heat pump and auxiliary heating apparatus control system with switchover during low outdoor temperature79US 4,598,764 AHoneywell Inc. · 1986
- Heat pump control system78US 4,627,483 AVisual Information Institute, Inc. · 1986
- Method of controlling the temperature of water in a water heater70US 6,633,726 B22003