F24H 9/1836
Using fluid fuel
Official title: using fluid fuel
F24H9/1836 (Using fluid fuel) appears on 227 US grants and 175 published applications in this corpus.
Search patents in F24H- Granted patents
- 227
- Published applications
- 175
- Assignees
- 111
- Inventors
- 441
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 3 |
| 2002 | 7 | 2 |
| 2003 | 5 | 2 |
| 2004 | 4 | 3 |
| 2005 | 2 | 1 |
| 2006 | 2 | 3 |
| 2007 | 2 | 4 |
| 2008 | 1 | 2 |
| 2009 | 1 | 4 |
| 2010 | 3 | 6 |
| 2011 | 2 | 2 |
| 2012 | 1 | 2 |
| 2013 | 2 | 1 |
| 2014 | 2 | 8 |
| 2015 | 2 | 9 |
| 2016 | 4 | 6 |
| 2017 | 7 | 8 |
| 2018 | 7 | 17 |
| 2019 | 17 | 18 |
| 2020 | 18 | 18 |
| 2021 | 16 | 11 |
| 2022 | 13 | 12 |
| 2023 | 8 | 8 |
| 2024 | 8 | 10 |
| 2025 | 6 | 9 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Burner and water heater comprising same25 Aug 2026US 12,716,615 B2Kyungdong Navien Co., Ltd.
- Gas distribution unit and water heater14 Apr 2026US 12,601,480 B2Paloma Co., Ltd.
- Gas burner and heating appliance2 Dec 2025US 12,486,977 B2Bekaert Combustion Technology B.V.
- Combustion chamber and gas apparatus14 Oct 2025US 12,442,531 B2Midea Group Co., Ltd.
- Combustion cell for a heating system2 Sep 2025US 12,405,002 B2FERROLI S.p.A.
- Burner and water heating apparatus including the same2 Jul 2026US 2026/0185739 A1Kyungdong Navien Co., Ltd.
- Combustion heat exchange assembly and gas water heater25 Jun 2026US 2026/0177235 A1Guangdong Midea Kitchen and Bath Appliances Mfg. Co., Ltd.
- Combustion chamber assembly25 Jun 2026US 2026/0177284 A1Kyungdong Navien Co., Ltd.
- Gas water heating device and control method thereof18 Jun 2026US 2026/0168702 A1A. O. Smith Corporation
- Gas device and gas water heater11 Jun 2026US 2026/0160447 A1Wuhu Midea Smart Kitchen Appliance Manufacturing Co., Ltd.
Most cited
By later US patents
- Water heater with integral burner71US 5,355,841 ASABH (U.S.) Water Heater Group, Inc. · 1994
- Water heater with low NO.sub.x ceramic burner67US 5,511,516 ASABH (U.S.) Water Heater Group, Inc. · 1996
- Low emission combustion system63US 6,145,501 ACarrier Corporation · 2000
- Water heater with flame spill-out prevention arrangement44US 4,924,816 AMor-Flo Industries, Inc. · 1990
- Power-vented, direct-vent water heater42US 5,697,330 ARheem Manufacturing Company · 1997