F24H 9/2007
For water heaters
Official title: {for water heaters}
F24H9/2007 (For water heaters) appears on 1,276 US grants and 1,510 published applications in this corpus.
Search patents in F24H- Granted patents
- 1,276
- Published applications
- 1,510
- Assignees
- 540
- Inventors
- 2,500
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 9 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 8 | 0 |
| 1981 | 11 | 0 |
| 1982 | 4 | 0 |
| 1983 | 8 | 0 |
| 1984 | 6 | 0 |
| 1985 | 15 | 0 |
| 1986 | 10 | 0 |
| 1987 | 10 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 10 | 0 |
| 1995 | 12 | 0 |
| 1996 | 8 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 16 | 0 |
| 2000 | 20 | 0 |
| 2001 | 23 | 6 |
| 2002 | 14 | 12 |
| 2003 | 20 | 20 |
| 2004 | 16 | 18 |
| 2005 | 18 | 18 |
| 2006 | 15 | 20 |
| 2007 | 13 | 31 |
| 2008 | 10 | 19 |
| 2009 | 17 | 37 |
| 2010 | 14 | 61 |
| 2011 | 21 | 38 |
| 2012 | 43 | 66 |
| 2013 | 33 | 74 |
| 2014 | 36 | 75 |
| 2015 | 47 | 89 |
| 2016 | 61 | 84 |
| 2017 | 60 | 62 |
| 2018 | 71 | 93 |
| 2019 | 79 | 102 |
| 2020 | 73 | 105 |
| 2021 | 61 | 101 |
| 2022 | 98 | 98 |
| 2023 | 79 | 53 |
| 2024 | 57 | 95 |
| 2025 | 46 | 83 |
| 2026 | 37 | 50 |
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
- Heater bundles having variable power output within zones22 Sep 2026US 12,742,570 B2Watlao Electric Manufacturing Company
- Stepped segmental baffle for electric process heater1 Sep 2026US 12,723,776 B2
- Low-emissions heating, cooling, and hot water system25 Aug 2026US 12,716,616 B2Harvest Thermal, Inc.
- Method for avoiding critical operating conditions of a liquid tank device and liquid tank device25 Aug 2026US 12,717,358 B2Brita LP
- Smart electric heater for bathing installations8 Oct 2026US 2026/0309370 A1Balboa Water Group, Inc.
- Water heater appliance and methods for detection and identification of fault conditions17 Sep 2026US 2026/0276242 A1Haier US Appliance Solutions, Inc.
- Systems and Methods to Quick Start a Water Heater3 Sep 2026US 2026/0258969 A1Rheem Manufacturing Company
- Systems and Methods to Configure Water Heaters20 Aug 2026US 2026/0243467 A1Rheem Manufacturing Company
- Heat Pump Pool Water Heater Systems and Methods Thereto13 Aug 2026US 2026/0234952 A1Rheem Manufacturing Company
Most cited
By later US patents
- Integrated appliance control system186US 6,059,195 ATridelta Industries, Inc. · 2000
- Control system for a water heater150US 5,797,358 AAOS Holding Company · 1998
- Microprocessor controlled tankless water heater system129US 5,504,306 AChronomite Laboratories, Inc. · 1996
- Automated water heater flushing and monitoring system122US 10,047,974 B1State Farm Mutual Automobile Insurance Company · 2018
- Automated water heater flushing and monitoring system121US 10,480,825 B1State Farm Mutual Automobile Insurance Company · 2019