F24H 15/40
Control of fluid heaters: characterised by the type of controllers
Official title: characterised by the type of controllers
F24H15/40 (Control of fluid heaters: characterised by the type of controllers) appears on 1,000 US grants and 1,282 published applications in this corpus.
Search patents in F24H- Granted patents
- 1,000
- Published applications
- 1,282
- Assignees
- 475
- Inventors
- 2,133
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 13 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 12 | 4 |
| 2002 | 6 | 8 |
| 2003 | 14 | 10 |
| 2004 | 6 | 12 |
| 2005 | 12 | 19 |
| 2006 | 16 | 25 |
| 2007 | 9 | 31 |
| 2008 | 9 | 17 |
| 2009 | 16 | 31 |
| 2010 | 17 | 45 |
| 2011 | 21 | 41 |
| 2012 | 22 | 46 |
| 2013 | 29 | 54 |
| 2014 | 31 | 72 |
| 2015 | 33 | 72 |
| 2016 | 53 | 73 |
| 2017 | 54 | 62 |
| 2018 | 66 | 85 |
| 2019 | 71 | 81 |
| 2020 | 64 | 79 |
| 2021 | 55 | 91 |
| 2022 | 70 | 60 |
| 2023 | 64 | 47 |
| 2024 | 51 | 84 |
| 2025 | 43 | 79 |
| 2026 | 31 | 54 |
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
- Machine learning of heat pump system water usage patterns for optimized heat pump performance1 Sep 2026US 12,723,778 B2Bradford White Corporation
- Furnace control systems and methods25 Aug 2026US 12,716,617 B2Johnson Controls Light Commercial IP GmbH
- Wireless pairing of hot water supply system11 Aug 2026US 12,704,294 B2Noritz Corporation
- Water heaters with computing elements as a network11 Aug 2026US 12,704,888 B2
- Water detection, distribution and monitoring system8 Oct 2026US 2026/0308893 A1Ocean Park Mechanical Inc
- Smart electric heater for bathing installations8 Oct 2026US 2026/0309370 A1Balboa Water Group, Inc.
- Machine learning of heat pump system water usage patterns for optimized heat pump performance1 Oct 2026US 2026/0298499 A1Bradford White Corporation
- Modular appliance configuration and recovery1 Oct 2026US 2026/0298501 A1
- Control device for controlling a burner apparatus configured to burn gaseous liquid or solid fuel17 Sep 2026US 2026/0276243 A1Bertelli & Partners S.R.L.
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
- Control system for a water heater150US 5,797,358 AAOS Holding Company · 1998