F24H 1/145
Using fluid fuel
Official title: {using fluid fuel}
F24H1/145 (Using fluid fuel) appears on 151 US grants and 173 published applications in this corpus.
Search patents in F24H- Granted patents
- 151
- Published applications
- 173
- Assignees
- 66
- Inventors
- 324
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 1 | 3 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 2 | 0 |
| 2012 | 0 | 5 |
| 2013 | 2 | 4 |
| 2014 | 2 | 7 |
| 2015 | 4 | 13 |
| 2016 | 3 | 17 |
| 2017 | 13 | 14 |
| 2018 | 14 | 23 |
| 2019 | 17 | 15 |
| 2020 | 13 | 16 |
| 2021 | 17 | 13 |
| 2022 | 19 | 11 |
| 2023 | 9 | 9 |
| 2024 | 5 | 6 |
| 2025 | 7 | 8 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Combustion device and water heater21 Apr 2026US 12,607,353 B2Paloma Co., Ltd.
- Gas distribution unit and water heater14 Apr 2026US 12,601,480 B2Paloma Co., Ltd.
- Heat exchanger for heating devices, and tube-assembly module for a heat exchanger10 Feb 2026US 12,546,510 B2Clada S.R.L.
- Heat exchanger tubes and tube assembly configurations3 Feb 2026US 12,540,755 B2Rheem Manufacturing Company
- Hot water apparatus23 Sep 2025US 12,422,167 B2Noritz Corporation
- Pressurized tankless boiler system and appartus8 Oct 2026US 2026/0309365 A1Phoenix Heating Services
- Tankless drop-in replacement boiler11 Jun 2026US 2026/0160445 A1MO’S Mechanical, LLC
- Valve device and gas water heater2 Apr 2026US 2026/0092651 A1Guangdong Midea Kitchen and Bath Appliances Mfg. Co., Ltd.
- Water heating system and water heater22 Jan 2026US 2026/0022861 A1Rinnai Corporation
- Scale deposit detection in water heater appliances10 Jul 2025US 2025/0224145 A1Haier US Appliance Solutions, Inc.
Most cited
By later US patents
- Segregated fired heater33US 10,962,259 B2Uop LLC · 2021
- Surface combustion type burner with air supply entirely as primary air26US 4,480,988 AOsaka Gas Co., Ltd. · 1984
- Heat transfer apparatus for water heater22US 4,738,225 A1988
- Water heater19US 4,444,156 AKabushiki Kaisha Youei Seisakusho · 1984
- Burner for water heater19US 4,737,102 ARinnai Corporation · 1988