F24H 3/025
Using fluid fuel
Official title: {using fluid fuel}
F24H3/025 (Using fluid fuel) appears on 42 US grants and 60 published applications in this corpus.
Search patents in F24H- Granted patents
- 42
- Published applications
- 60
- Assignees
- 41
- Inventors
- 142
- Latest grant
- 13 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 1 | 5 |
| 2012 | 1 | 4 |
| 2013 | 2 | 1 |
| 2014 | 3 | 3 |
| 2015 | 5 | 4 |
| 2016 | 3 | 5 |
| 2017 | 0 | 2 |
| 2018 | 6 | 2 |
| 2019 | 3 | 6 |
| 2020 | 0 | 5 |
| 2021 | 1 | 8 |
| 2022 | 5 | 5 |
| 2023 | 2 | 3 |
| 2024 | 4 | 3 |
| 2025 | 3 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Agricultural building environmental control system8 Apr 2025US 12,268,184 B2Diversified Agriculture, LLC
- Sound attenuation for HVAC devices25 Feb 2025US 12,235,012 B2Trane International Inc.
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- Heat exchanger transfer tubes27 Aug 2024US 12,072,153 B2Rheem Manufacturing Company
- Variable-frequency heater12 Mar 2026US 2026/0071780 A1Zhongshan Powtek Appliances Mfg., Ltd.
- Systems and methods for hybrid heating system control26 Feb 2026US 2026/0055928 A1Honeywell International Inc.
- Systems and Methods for Detecting Pressure in a Gas Furnace27 Feb 2025US 2025/0067474 A1Rheem Manufacturing Company
- Fan assisted personal heater device19 Dec 2024US 2024/0418407 A1Techtronic Cordless GP
- Hybrid fireplace with display17 Oct 2024US 2024/0344704 A1
Most cited
By later US patents
- Thermal energy storage to increase furnace efficiency21US 4,250,866 AResearch Institute for Advanced Technology · 1981
- Portable heater housing15US 9,267,704 B1Procom Heating, Inc. · 2016
- Portable air heating system12US 7,997,004 B1Taps, LLC · 2011
- Forced air heater including on-board source of electric energy12US 8,893,706 B2Enerco Group, Inc. · 2014
- Forced air heater including multiple on-board sources of electric energy11US 10,495,344 B2Enerco Group, Inc. · 2019