F24H 15/355
Control of heat-generating means in heaters
F24H15/355 (Control of heat-generating means in heaters) appears on 1,131 US grants and 1,335 published applications in this corpus.
Search patents in F24H- Granted patents
- 1,131
- Published applications
- 1,335
- Assignees
- 541
- Inventors
- 2,324
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 12 | 0 |
| 1986 | 17 | 0 |
| 1987 | 8 | 0 |
| 1988 | 10 | 0 |
| 1989 | 7 | 0 |
| 1990 | 10 | 0 |
| 1991 | 7 | 0 |
| 1992 | 9 | 0 |
| 1993 | 8 | 0 |
| 1994 | 13 | 0 |
| 1995 | 9 | 0 |
| 1996 | 10 | 0 |
| 1997 | 6 | 0 |
| 1998 | 9 | 0 |
| 1999 | 13 | 0 |
| 2000 | 16 | 0 |
| 2001 | 19 | 4 |
| 2002 | 11 | 9 |
| 2003 | 19 | 19 |
| 2004 | 13 | 12 |
| 2005 | 15 | 19 |
| 2006 | 17 | 25 |
| 2007 | 13 | 39 |
| 2008 | 9 | 21 |
| 2009 | 19 | 41 |
| 2010 | 16 | 62 |
| 2011 | 19 | 47 |
| 2012 | 37 | 63 |
| 2013 | 33 | 65 |
| 2014 | 43 | 68 |
| 2015 | 41 | 85 |
| 2016 | 62 | 61 |
| 2017 | 56 | 63 |
| 2018 | 48 | 77 |
| 2019 | 74 | 84 |
| 2020 | 55 | 88 |
| 2021 | 61 | 92 |
| 2022 | 75 | 50 |
| 2023 | 60 | 44 |
| 2024 | 52 | 74 |
| 2025 | 29 | 70 |
| 2026 | 25 | 53 |
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
- Furnace control systems and methods25 Aug 2026US 12,716,617 B2Johnson Controls Light Commercial IP GmbH
- Cold climate heat pump system with energy storage11 Aug 2026US 12,704,328 B2Trane International Inc.
- Water heating system and device8 Oct 2026US 2026/0309340 A1Mixergy Limited
- System and method for cleaning windows and lenses in automotive applications1 Oct 2026US 2026/0296374 A1Uusi, LLC
- Water heater appliance and a reserve tank mode thereof1 Oct 2026US 2026/0298500 A1Haier US Appliance Solutions, Inc.
- Boost Heat Pump Water Heater3 Sep 2026US 2026/0258970 A1Rheem Manufacturing Company
- Water heater and methods for operating the same3 Sep 2026US 2026/0258978 A1Bradford White Corporation
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
- Automatic hot water supply apparatus152US 5,058,804 AMatsushita Electric Industrial Co., Ltd. · 1991
- Control system for a water heater150US 5,797,358 AAOS Holding Company · 1998
- Multi-phase modular comfort controlled heating system131US 4,337,893 AEnergy Savings Parhelion · 1982