F24H 1/54
Water heaters for bathtubs or pools
Official title: Water heaters for bathtubs or pools; Water heaters for reheating the water in bathtubs or pools
F24H1/54 (Water heaters for bathtubs or pools) appears on 48 US grants and 67 published applications in this corpus.
Search patents in F24H- Granted patents
- 48
- Published applications
- 67
- Assignees
- 35
- Inventors
- 150
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 6 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 5 |
| 2010 | 2 | 3 |
| 2011 | 2 | 4 |
| 2012 | 1 | 3 |
| 2013 | 2 | 2 |
| 2014 | 1 | 2 |
| 2015 | 4 | 3 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 2 |
| 2022 | 2 | 6 |
| 2023 | 1 | 7 |
| 2024 | 3 | 7 |
| 2025 | 2 | 8 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heater and heating pool15 Sep 2026US 12,736,254 B2Oriental Recreational Products (Shanghai) Co., Ltd
- Solar heating system9 Jun 2026US 12,650,245 B2
- Heat pump pool water heater systems and methods thereto21 Apr 2026US 12,607,029 B2Rheem Manufacturing Company
- Integrated anode for a heat exchanger17 Feb 2026US 12,553,644 B2Rheem Manufacturing Company
- Heat exchanger for heating devices, and tube-assembly module for a heat exchanger10 Feb 2026US 12,546,510 B2Clada S.R.L.
- Heat Pump Pool Water Heater Systems and Methods Thereto13 Aug 2026US 2026/0234952 A1Rheem Manufacturing Company
- Integrated Anode For A Heat Exchanger18 Jun 2026US 2026/0168701 A1Rheem Manufacturing Company
- Self-Configuring Ignition Controls12 Mar 2026US 2026/0071455 A1Copeland Comfort Control LP
- Connected pool and spa heater system4 Dec 2025US 2025/0369245 A1Pentair Water Pool and Spa, Inc.
- Electrical protection methods and systems13 Nov 2025US 2025/0350109 A1
Most cited
By later US patents
- Water flow detection system for a bathing unit47US 7,593,789 B2Gecko Alliance Group Inc. · 2009
- Water flow detection system for a bathing unit45US 7,440,820 B2Gecko Alliance Group Inc. · 2008
- Hot water supply for tubs43US 4,924,069 ATeledyne Industries, Inc. · 1990
- Water circulation and heating system for spas34US 5,526,538 AHurrican Products Incorporated · 1996
- Heat exchanger for a pump motor30US 4,854,373 A1989