F24H 1/186
Using fluid fuel
Official title: {using fluid fuel}
F24H1/186 (Using fluid fuel) appears on 113 US grants and 150 published applications in this corpus.
Search patents in F24H- Granted patents
- 113
- Published applications
- 150
- Assignees
- 74
- Inventors
- 255
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 2 | 2 |
| 2009 | 1 | 5 |
| 2010 | 1 | 12 |
| 2011 | 2 | 2 |
| 2012 | 4 | 2 |
| 2013 | 5 | 5 |
| 2014 | 2 | 17 |
| 2015 | 2 | 13 |
| 2016 | 9 | 8 |
| 2017 | 10 | 3 |
| 2018 | 4 | 10 |
| 2019 | 12 | 4 |
| 2020 | 7 | 12 |
| 2021 | 5 | 15 |
| 2022 | 12 | 5 |
| 2023 | 8 | 4 |
| 2024 | 2 | 7 |
| 2025 | 3 | 11 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas fueled water heater appliance and methods to mitigate lint, dust, and oil events14 Jul 2026US 12,680,728 B2Haier US Appliance Solutions, Inc.
- Hydronic surface heater with auto-adjusting burner7 Jul 2026US 12,674,578 B2Wacker Neuson America Corporation
- Boiler for making hot water and room heating water available simultaneously17 Mar 2026US 12,578,120 B2
- Gas fueled water heater appliance and methods to mitigate lint, dust, and oil events27 Jan 2026US 12,535,245 B2Haier US Appliance Solutions, Inc.
- Multi-tank storage type gas water heater16 Dec 2025US 12,498,140 B2
- Water heating system10 Sep 2026US 2026/0266509 A1Bradford White Corporation
- Single pass high-efficiency condensing water heater27 Aug 2026US 2026/0251350 A1Bradford White Corporation
- Water heater appliance and method for installation and fault detection20 Aug 2026US 2026/0243466 A1Haier US Appliance Solutions, Inc.
- Thermoelectric energy system using intermittent gas pilot for power management6 Aug 2026US 2026/0231681 A1Resideo LLC
- Systems and Methods to Restrict Air Flow in Heating Systems9 Jul 2026US 2026/0194258 A1Rheem Manufacturing Company
Most cited
By later US patents
- Small heat and electricity generating plant52US 5,903,060 A1999
- High efficiency water heating system40US 4,445,464 AAdvanced Mechanical Technology, Inc. · 1984
- Apparatus and method for converting an electric water heater to use gas33US 5,203,500 AGas-Fired Products, Inc. · 1993
- High efficiency water heating system32US 4,338,888 AAdvanced Mechanical Technology, Inc. · 1982
- Rapid recovery gas hot water heater27US 5,020,721 AGas-Fired Products, Inc. · 1991