F24H 3/065
Using fluid fuel
Official title: {using fluid fuel}
F24H3/065 (Using fluid fuel) appears on 171 US grants and 118 published applications in this corpus.
Search patents in F24H- Granted patents
- 171
- Published applications
- 118
- Assignees
- 104
- Inventors
- 336
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 11 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 3 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 4 |
| 2009 | 0 | 4 |
| 2010 | 0 | 3 |
| 2011 | 2 | 4 |
| 2012 | 0 | 0 |
| 2013 | 3 | 5 |
| 2014 | 2 | 6 |
| 2015 | 2 | 10 |
| 2016 | 2 | 8 |
| 2017 | 6 | 6 |
| 2018 | 9 | 9 |
| 2019 | 6 | 8 |
| 2020 | 5 | 13 |
| 2021 | 6 | 8 |
| 2022 | 5 | 2 |
| 2023 | 7 | 6 |
| 2024 | 6 | 6 |
| 2025 | 5 | 5 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Furnace control systems and methods25 Aug 2026US 12,716,617 B2Johnson Controls Light Commercial IP GmbH
- Gas furnace and air conditioner having the same5 May 2026US 12,618,559 B2LG Electronics Inc.
- Umbrella-shaped heater14 Apr 2026US 12,601,498 B2
- Gas furnace and air conditioner having the same11 Nov 2025US 12,467,660 B2LG Electronics Inc.
- Heat exchanger baffle assembly with horizontal gap26 Aug 2025US 12,398,921 B2Carrier Corporation
- Parking heater25 Jun 2026US 2026/0177283 A1Shenzhen Yisi Technology Co., Ltd.
- Combination heating system for recreational vehicles and boats16 Apr 2026US 2026/0104181 A1Aqua-Hot Heating Systems, LLC
- Heating Appliance Including a Backward-Incline Blower19 Mar 2026US 2026/0078927 A1Rheem Manufacturing Company
- Mobile air heater29 Jan 2026US 2026/0029161 A1Dometic Sweden AB
- Air heater for mobile applications with reduced housing surface temperature11 Dec 2025US 2025/0376005 A1Webasto SE
Most cited
By later US patents
- Gas-fired condensing mode furnace40US 4,515,145 AYukon Energy Corporation · 1985
- Two-stage heat exchanger32US 4,275,705 ACanadian Gas Research Institute · 1981
- Heat exchanger for combustion heater32US 4,657,074 ADiesel Kiki Co., Ltd. · 1987
- Furnace blower with double sided impeller31US 6,318,358 B1Jackel, Inc. · 2001
- High efficiency furnace28US 4,561,421 ADuo-Matic/Olsen Inc. · 1985