F24D 17/02
Domestic hot-water supply systems: using heat pumps
Official title: using heat pumps
F24D17/02 (Domestic hot-water supply systems: using heat pumps) appears on 356 US grants and 434 published applications in this corpus.
Search patents in F24D- Granted patents
- 356
- Published applications
- 434
- Assignees
- 194
- Inventors
- 849
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 8 | 0 |
| 1981 | 9 | 0 |
| 1982 | 8 | 0 |
| 1983 | 12 | 0 |
| 1984 | 5 | 0 |
| 1985 | 10 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 7 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 3 | 2 |
| 2004 | 0 | 4 |
| 2005 | 3 | 3 |
| 2006 | 2 | 1 |
| 2007 | 2 | 4 |
| 2008 | 3 | 6 |
| 2009 | 0 | 7 |
| 2010 | 3 | 16 |
| 2011 | 4 | 24 |
| 2012 | 4 | 27 |
| 2013 | 3 | 23 |
| 2014 | 0 | 25 |
| 2015 | 26 | 29 |
| 2016 | 26 | 10 |
| 2017 | 15 | 13 |
| 2018 | 21 | 16 |
| 2019 | 13 | 18 |
| 2020 | 18 | 18 |
| 2021 | 14 | 20 |
| 2022 | 11 | 24 |
| 2023 | 17 | 26 |
| 2024 | 24 | 59 |
| 2025 | 27 | 40 |
| 2026 | 17 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Machine learning of heat pump system water usage patterns for optimized heat pump performance1 Sep 2026US 12,723,778 B2Bradford White Corporation
- Low-emissions heating, cooling, and hot water system25 Aug 2026US 12,716,616 B2Harvest Thermal, Inc.
- Condenser18 Aug 2026US 12,710,232 B2
- Water heater and method for controlling the same4 Aug 2026US 12,701,684 B2LG Electronics Inc.
- Constant-temperature water supply system employing carbon dioxide heat pump, and control method therefor26 May 2026US 12,638,191 B2Jiangsu Sujing Group Co., Ltd.
- Water heating system and device8 Oct 2026US 2026/0309340 A1Mixergy Limited
- Systems and methods for integrating a water heating unit and a heat pump1 Oct 2026US 2026/0298484 A1
- Systems and methods for integrating a water heating unit and a heat pump1 Oct 2026US 2026/0298485 A1
- Machine learning of heat pump system water usage patterns for optimized heat pump performance1 Oct 2026US 2026/0298499 A1Bradford White Corporation
- Water heater system and method of operating same3 Sep 2026US 2026/0258957 A1S3NERGY INC. d/b/a REGENEAU
Most cited
By later US patents
- Electric power demand limit for variable speed heat pumps and integrated water heating heat pumps81US 5,095,715 AElectric Power Research Institute, Inc. · 1992
- Combined refrigerator water heater70US 5,220,807 ADavis Energy Group, Inc. · 1993
- Control device for heat pump with hot-water supply facility66US 4,943,003 ASanden Corporation · 1990
- Storage tank for hot water systems65US 7,458,418 B2Carrier Corporation · 2008
- Heat pump system with hot water defrost62US 4,766,734 AElectric Power Research Institute, Inc. · 1988