F24H 15/375
Control of heat pumps
F24H15/375 (Control of heat pumps) appears on 198 US grants and 309 published applications in this corpus.
Search patents in F24H- Granted patents
- 198
- Published applications
- 309
- Assignees
- 115
- Inventors
- 593
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 4 |
| 2006 | 2 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 4 |
| 2010 | 1 | 7 |
| 2011 | 1 | 12 |
| 2012 | 0 | 15 |
| 2013 | 3 | 12 |
| 2014 | 2 | 10 |
| 2015 | 9 | 18 |
| 2016 | 18 | 15 |
| 2017 | 14 | 13 |
| 2018 | 13 | 17 |
| 2019 | 16 | 18 |
| 2020 | 12 | 12 |
| 2021 | 13 | 18 |
| 2022 | 10 | 11 |
| 2023 | 15 | 15 |
| 2024 | 10 | 26 |
| 2025 | 16 | 50 |
| 2026 | 11 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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.
- Cold climate heat pump system with energy storage11 Aug 2026US 12,704,328 B2Trane International Inc.
- Obstruction detection for a heat pump water heater system16 Jun 2026US 12,656,035 B2Bradford White Corporation
- Heating systems9 Jun 2026US 12,650,244 B2Mixergy Limited
- Energy buffering using a heat pump8 Oct 2026US 2026/0309339 A1Mixergy Limited
- 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 2026/0298489 A1
- Systems and methods for integrating a water heating unit and a heat pump1 Oct 2026US 2026/0298490 A1
- Machine learning of heat pump system water usage patterns for optimized heat pump performance1 Oct 2026US 2026/0298499 A1Bradford White Corporation
Most cited
By later US patents
- Refrigeration heat pump and auxiliary heating apparatus control system with switchover during low outdoor temperature79US 4,598,764 AHoneywell Inc. · 1986
- Heat pump control system78US 4,627,483 AVisual Information Institute, Inc. · 1986
- Microprocessor control for a heat pump water heater70US 6,212,894 B1WaterFurnace International, Inc. · 2001
- Heat pump control system with defrost cycle monitoring60US 4,627,484 AVisual Information Institute, Inc. · 1986
- Hot-water supply system with heat pump cycle37US 6,467,289 B2Central Research Institute of Electric Power Industry · 2002