F24H 1/18
Water-storage heaters
F24H1/18 (Water-storage heaters) appears on 1,303 US grants and 1,257 published applications in this corpus.
Search patents in F24H- Granted patents
- 1,303
- Published applications
- 1,257
- Assignees
- 528
- Inventors
- 2,265
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 9 | 0 |
| 1981 | 19 | 0 |
| 1982 | 9 | 0 |
| 1983 | 14 | 0 |
| 1984 | 21 | 0 |
| 1985 | 17 | 0 |
| 1986 | 12 | 0 |
| 1987 | 21 | 0 |
| 1988 | 18 | 0 |
| 1989 | 32 | 0 |
| 1990 | 40 | 0 |
| 1991 | 26 | 0 |
| 1992 | 16 | 0 |
| 1993 | 26 | 0 |
| 1994 | 18 | 0 |
| 1995 | 13 | 0 |
| 1996 | 19 | 0 |
| 1997 | 15 | 0 |
| 1998 | 20 | 0 |
| 1999 | 24 | 0 |
| 2000 | 26 | 0 |
| 2001 | 25 | 8 |
| 2002 | 18 | 12 |
| 2003 | 26 | 19 |
| 2004 | 15 | 18 |
| 2005 | 31 | 35 |
| 2006 | 16 | 25 |
| 2007 | 16 | 30 |
| 2008 | 17 | 34 |
| 2009 | 15 | 44 |
| 2010 | 27 | 58 |
| 2011 | 16 | 33 |
| 2012 | 25 | 42 |
| 2013 | 22 | 54 |
| 2014 | 29 | 65 |
| 2015 | 35 | 57 |
| 2016 | 40 | 60 |
| 2017 | 46 | 59 |
| 2018 | 45 | 76 |
| 2019 | 65 | 89 |
| 2020 | 63 | 83 |
| 2021 | 59 | 74 |
| 2022 | 58 | 69 |
| 2023 | 60 | 45 |
| 2024 | 37 | 56 |
| 2025 | 36 | 63 |
| 2026 | 25 | 49 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hot water storage tank29 Sep 2026US 12,747,891 B2Mitsubishi Electric Corporation
- Tank water heater and water heating system8 Sep 2026US 12,729,879 B2A. O. Smith Corporation
- 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
- Gas fueled water heater appliance and methods to mitigate lint, dust, and oil events14 Jul 2026US 12,680,728 B2Haier US Appliance Solutions, Inc.
- Baffle for condensing flue tubes within a water heating appliance8 Oct 2026US 2026/0309367 A1Bradford White Corporation
- Hot water supply system8 Oct 2026US 2026/0309368 A1Mitsubishi Electric Corporation
- Water supply unit and aircraft having a water supply unit24 Sep 2026US 2026/0287209 A1Airbus Operations GmbH
- Water heating system10 Sep 2026US 2026/0266509 A1Bradford White Corporation
- Boost Heat Pump Water Heater3 Sep 2026US 2026/0258970 A1Rheem Manufacturing Company
Most cited
By later US patents
- Thermal insulation jacket150US 5,020,481 A1991
- Control system for a water heater150US 5,797,358 AAOS Holding Company · 1998
- Apparatus for heating fluids109US 5,188,090 AHydro Dynamics, Inc. · 1993
- Heating vessel with chromium-enriched stainless steel substrate promoting adherence of thin film heater thereon93US 5,557,704 APifco Limited · 1996
- Combustion burner for a water heater87US 6,036,480 AAOS Holding Company · 2000