F24H 9/2021
Storage heaters
Official title: {Storage heaters}
F24H9/2021 (Storage heaters) appears on 368 US grants and 439 published applications in this corpus.
Search patents in F24H- Granted patents
- 368
- Published applications
- 439
- Assignees
- 165
- Inventors
- 725
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 3 |
| 2002 | 4 | 2 |
| 2003 | 7 | 8 |
| 2004 | 4 | 6 |
| 2005 | 3 | 5 |
| 2006 | 5 | 5 |
| 2007 | 6 | 14 |
| 2008 | 4 | 6 |
| 2009 | 6 | 8 |
| 2010 | 6 | 17 |
| 2011 | 6 | 9 |
| 2012 | 11 | 13 |
| 2013 | 9 | 18 |
| 2014 | 12 | 30 |
| 2015 | 15 | 27 |
| 2016 | 22 | 26 |
| 2017 | 22 | 14 |
| 2018 | 14 | 23 |
| 2019 | 22 | 29 |
| 2020 | 18 | 33 |
| 2021 | 15 | 24 |
| 2022 | 29 | 36 |
| 2023 | 21 | 18 |
| 2024 | 17 | 30 |
| 2025 | 15 | 26 |
| 2026 | 14 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for avoiding critical operating conditions of a liquid tank device and liquid tank device25 Aug 2026US 12,717,358 B2Brita LP
- Water heaters with computing elements as a network11 Aug 2026US 12,704,888 B2
- Hot water tank and flow through heating assembly23 Jun 2026US 12,663,181 B2National Machine Company
- Heating systems9 Jun 2026US 12,650,244 B2Mixergy Limited
- Safety control system for electric water heater2 Jun 2026US 12,644,626 B2National Kaohsiung University of Science and Technology
- 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
- Portable Cooling and Heating Container16 Jul 2026US 2026/0202090 A1
- System and method for using waste heat generated by digital processing components18 Jun 2026US 2026/0169534 A1
- Water heater controller and methods for controlling water temperature11 Jun 2026US 2026/0160449 A1
Most cited
By later US patents
- Domestic electric energy control104US 5,956,462 AAquabeat Pty Ltd. · 1999
- Hot water controller98US 5,968,393 A1999
- Heater control device and method to save energy92US 6,293,471 B12001
- Hot water dispenser having improved water temperature control system73US 4,978,833 ABunn-O-Matic Corporation · 1990
- Method of controlling the temperature of water in a water heater70US 6,633,726 B22003