F24H 15/30
Control of fluid heaters: characterised by control outputs
Official title: characterised by control outputs; characterised by the components to be controlled
F24H15/30 (Control of fluid heaters: characterised by control outputs) appears on 1,611 US grants and 2,042 published applications in this corpus.
Search patents in F24H- Granted patents
- 1,611
- Published applications
- 2,042
- Assignees
- 729
- Inventors
- 3,347
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 9 | 0 |
| 1979 | 7 | 0 |
| 1980 | 5 | 0 |
| 1981 | 12 | 0 |
| 1982 | 10 | 0 |
| 1983 | 11 | 0 |
| 1984 | 7 | 0 |
| 1985 | 15 | 0 |
| 1986 | 20 | 0 |
| 1987 | 12 | 0 |
| 1988 | 12 | 0 |
| 1989 | 9 | 0 |
| 1990 | 11 | 0 |
| 1991 | 9 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 16 | 0 |
| 1995 | 13 | 0 |
| 1996 | 11 | 0 |
| 1997 | 7 | 0 |
| 1998 | 11 | 0 |
| 1999 | 17 | 0 |
| 2000 | 26 | 0 |
| 2001 | 21 | 7 |
| 2002 | 15 | 14 |
| 2003 | 23 | 20 |
| 2004 | 16 | 17 |
| 2005 | 17 | 26 |
| 2006 | 21 | 31 |
| 2007 | 16 | 44 |
| 2008 | 11 | 27 |
| 2009 | 23 | 50 |
| 2010 | 22 | 82 |
| 2011 | 28 | 62 |
| 2012 | 46 | 87 |
| 2013 | 43 | 92 |
| 2014 | 51 | 99 |
| 2015 | 56 | 112 |
| 2016 | 86 | 96 |
| 2017 | 74 | 89 |
| 2018 | 85 | 116 |
| 2019 | 107 | 122 |
| 2020 | 84 | 119 |
| 2021 | 86 | 132 |
| 2022 | 104 | 87 |
| 2023 | 91 | 78 |
| 2024 | 78 | 154 |
| 2025 | 65 | 158 |
| 2026 | 59 | 121 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Water heater having highly efficient and compact heat exchanger6 Oct 2026US RE51,053 E1A. O. Smith Corporation
- 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
- Air heating apparatus and method for disassembling air heating apparatus1 Sep 2026US 12,723,777 B2Kyungdong Navien Co., Ltd.
- Machine learning of heat pump system water usage patterns for optimized heat pump performance1 Sep 2026US 12,723,778 B2Bradford White Corporation
- 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.
- Hot water supply system8 Oct 2026US 2026/0309368 A1Mitsubishi Electric Corporation
- System and method for cleaning windows and lenses in automotive applications1 Oct 2026US 2026/0296374 A1Uusi, LLC
Most cited
By later US patents
- 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
- Automatic hot water supply apparatus152US 5,058,804 AMatsushita Electric Industrial Co., Ltd. · 1991