F24H 1/52
Incorporating heat exchangers for domestic water
Official title: incorporating heat exchangers for domestic water (F24H1/50 takes precedence)
F24H1/52 (Incorporating heat exchangers for domestic water) appears on 92 US grants and 97 published applications in this corpus.
Search patents in F24H- Granted patents
- 92
- Published applications
- 97
- Assignees
- 52
- Inventors
- 183
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 3 |
| 2008 | 2 | 2 |
| 2009 | 2 | 8 |
| 2010 | 0 | 4 |
| 2011 | 3 | 6 |
| 2012 | 5 | 2 |
| 2013 | 2 | 3 |
| 2014 | 2 | 3 |
| 2015 | 4 | 3 |
| 2016 | 3 | 2 |
| 2017 | 2 | 1 |
| 2018 | 3 | 7 |
| 2019 | 4 | 8 |
| 2020 | 4 | 11 |
| 2021 | 11 | 11 |
| 2022 | 9 | 7 |
| 2023 | 6 | 3 |
| 2024 | 1 | 5 |
| 2025 | 3 | 4 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Boiler for making hot water and room heating water available simultaneously17 Mar 2026US 12,578,120 B2
- Water-dispensing system for generating boiled water of different temperatures3 Mar 2026US 12,566,013 B2Atlan Electrics Appliance Co., Ltd.
- System for producing heat for domestic hot water or central heating3 Feb 2026US 12,540,737 B2Daikin Europe N.V.
- Single-stage carbon dioxide multi-split cooling and heating multifunctional central air conditioner1 Jul 2025US 12,345,457 B2Beijing Jingkelun Engineering Design and Research Institute Co., Ltd.
- Double-circuit electric boiler (variants)18 Mar 2025US 12,253,282 B2
- Electric boiler11 Jun 2026US 2026/0160429 A1
- Water-dispensing system for generating boiled water of different temperatures20 Nov 2025US 2025/0354721 A1Atlan Electrics Appliance Co., Ltd.
- System and method for determining heat transfer capacity of an indirect water heater20 Nov 2025US 2025/0354722 A1Laars Heating Systems Company
- System and method for heating water22 May 2025US 2025/0164119 A1
- Method for controlling the pressure of the heat transfer fluid in a heating system22 May 2025US 2025/0164150 A1Ariston S.P.A.
Most cited
By later US patents
- Combined heating and hot water system55US 6,612,267 B1Vebteck Research Inc. · 2003
- Combination hydronic space heater and tankless hot water heater42US 4,823,770 ALogical Heating Systems, Inc. · 1989
- Apparatus and control method for a hybrid tankless water heater37US 8,498,523 B2Intellihot, Inc. · 2013
- Efficient heating and domestic hot water apparatus36US 4,222,350 ABoston Gas Products, Inc. · 1980
- Hot-water supply apparatus, anti-freezing method thereof, and anti-freezing program thereof31US 7,322,532 B2Takagi Industrial Co., Ltd. · 2008