F24H 15/00
Control of fluid heaters
F24H15/00 (Control of fluid heaters) appears on 1,802 US grants and 2,391 published applications in this corpus.
Search patents in F24H- Granted patents
- 1,802
- Published applications
- 2,391
- Assignees
- 854
- Inventors
- 3,925
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 9 | 0 |
| 1979 | 7 | 0 |
| 1980 | 6 | 0 |
| 1981 | 13 | 0 |
| 1982 | 11 | 0 |
| 1983 | 11 | 0 |
| 1984 | 8 | 0 |
| 1985 | 16 | 0 |
| 1986 | 21 | 0 |
| 1987 | 13 | 0 |
| 1988 | 12 | 0 |
| 1989 | 9 | 0 |
| 1990 | 11 | 0 |
| 1991 | 10 | 0 |
| 1992 | 13 | 0 |
| 1993 | 9 | 0 |
| 1994 | 16 | 0 |
| 1995 | 13 | 0 |
| 1996 | 11 | 0 |
| 1997 | 7 | 0 |
| 1998 | 11 | 0 |
| 1999 | 17 | 0 |
| 2000 | 27 | 0 |
| 2001 | 22 | 7 |
| 2002 | 16 | 16 |
| 2003 | 24 | 21 |
| 2004 | 19 | 20 |
| 2005 | 18 | 26 |
| 2006 | 21 | 32 |
| 2007 | 16 | 44 |
| 2008 | 12 | 28 |
| 2009 | 23 | 51 |
| 2010 | 23 | 83 |
| 2011 | 28 | 70 |
| 2012 | 49 | 93 |
| 2013 | 46 | 100 |
| 2014 | 53 | 106 |
| 2015 | 63 | 120 |
| 2016 | 91 | 103 |
| 2017 | 78 | 98 |
| 2018 | 100 | 130 |
| 2019 | 112 | 127 |
| 2020 | 89 | 128 |
| 2021 | 94 | 146 |
| 2022 | 112 | 133 |
| 2023 | 112 | 130 |
| 2024 | 106 | 210 |
| 2025 | 100 | 211 |
| 2026 | 81 | 158 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F24H 15/30Control of fluid heaters: characterised by control outputs1,611
- F24H 15/20Control of fluid heaters: characterised by control inputs1,576
- F24H 15/10Control of fluid heaters: characterised by the purpose of the control1,150
- F24H 15/40Control of fluid heaters: characterised by the type of controllers1,000
Recent patents
- Water heater having highly efficient and compact heat exchanger6 Oct 2026US RE51,053 E1A. O. Smith Corporation
- Control of fluid temperature in a dialysis system22 Sep 2026US 12,741,070 B2Gambro Lundia AB
- Electric fluid heater22 Sep 2026US 12,742,569 B2Digital Heat Ltd.
- Heater bundles having variable power output within zones22 Sep 2026US 12,742,570 B2Watlao Electric Manufacturing Company
- Leak detection systems for a fluid heating device8 Sep 2026US 12,729,880 B2Rheem Manufacturing Company
- Water detection, distribution and monitoring system8 Oct 2026US 2026/0308893 A1Ocean Park Mechanical Inc
- Economizer and boiler8 Oct 2026US 2026/0309323 A1Kurita Water Industries Ltd.
- Energy buffering using a heat pump8 Oct 2026US 2026/0309339 A1Mixergy Limited
- Water heating system and device8 Oct 2026US 2026/0309340 A1Mixergy Limited
- Heating device for a steam generator8 Oct 2026US 2026/0309366 A1Yuyao Hengxi Technology Co., Ltd.
Most cited
By later US patents
- Self-programmable temperature control system for a heating and cooling system328US 5,088,645 A1992
- Fluid heating control system199US 6,246,831 B1David Seitz · 2001
- Integrated appliance control system186US 6,059,195 ATridelta Industries, Inc. · 2000
- System for servicing and maintaining heat supply equipment177US 6,626,366 B2Miura Co., Ltd. · 2003
- Method for servicing and maintaining heat supply equipment155US 6,764,019 B1Miura Co., Ltd. · 2004