F24H 1/0027
Water heaters: using fluid fuel
Official title: {using fluid fuel}
F24H1/0027 (Water heaters: using fluid fuel) appears on 183 US grants and 142 published applications in this corpus.
Search patents in F24H- Granted patents
- 183
- Published applications
- 142
- Assignees
- 111
- Inventors
- 436
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 5 | 1 |
| 2003 | 3 | 3 |
| 2004 | 1 | 3 |
| 2005 | 3 | 2 |
| 2006 | 3 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 3 |
| 2012 | 0 | 5 |
| 2013 | 3 | 6 |
| 2014 | 4 | 6 |
| 2015 | 3 | 8 |
| 2016 | 4 | 9 |
| 2017 | 7 | 4 |
| 2018 | 10 | 7 |
| 2019 | 3 | 3 |
| 2020 | 5 | 6 |
| 2021 | 6 | 9 |
| 2022 | 5 | 10 |
| 2023 | 7 | 16 |
| 2024 | 6 | 9 |
| 2025 | 11 | 14 |
| 2026 | 8 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat exchanger with tube bundle comprising at least two sections15 Sep 2026US 12,736,288 B2Valmex S.P.A.
- Apparatus and method for combustion of natural gas from pneumatic controllers28 Jul 2026US 12,693,010 B2
- Fluid heating system with combustion trim learning14 Jul 2026US 12,680,727 B2A. O. Smith Corporation
- Burner and water heating apparatus including same2 Jun 2026US 12,644,595 B2Kyungdong Navien Co., Ltd.
- Boiler and method for stage change control thereof26 May 2026US 12,638,192 B2Kyungdong Navien Co., Ltd.
- Premixing device and combustion device comprising same8 Oct 2026US 2026/0309326 A1Noritz Corporation
- Control device for controlling a burner apparatus configured to burn gaseous liquid or solid fuel17 Sep 2026US 2026/0276243 A1Bertelli & Partners S.R.L.
- Systems and Methods to Adjust and/or Upgrade Configurations of Water Heaters16 Jul 2026US 2026/0202099 A1Rheem Manufacturing Company
- Burner and water heating apparatus including the same2 Jul 2026US 2026/0185739 A1Kyungdong Navien Co., Ltd.
- Water heater pipe quick-connect structure25 Jun 2026US 2026/0177285 A1Foshan Christie Leisure Technology Co., Ltd.
Most cited
By later US patents
- Self-regulating porous heater device180US 4,794,226 AMetcal, Inc. · 1988
- Self-regulating porous heating device179US 5,073,625 AMetcal, Inc. · 1991
- Method for the simultaneous generation of electrical energy and heat for heating purposes86US 6,042,956 ASulzer Innotec AG · 2000
- Method and apparatus for controlled reaction in a reaction matrix79US 5,165,884 AThermatrix, Inc. · 1992
- Condensing furnace with submerged combustion69US 5,097,802 ARaytheon Company · 1992