F24D 19/1054
The system uses a heat pump
Official title: {the system uses a heat pump}
F24D19/1054 (The system uses a heat pump) appears on 114 US grants and 169 published applications in this corpus.
Search patents in F24D- Granted patents
- 114
- Published applications
- 169
- Assignees
- 78
- Inventors
- 319
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 3 |
| 2012 | 0 | 8 |
| 2013 | 1 | 8 |
| 2014 | 1 | 6 |
| 2015 | 7 | 8 |
| 2016 | 9 | 9 |
| 2017 | 5 | 4 |
| 2018 | 8 | 6 |
| 2019 | 5 | 7 |
| 2020 | 6 | 7 |
| 2021 | 4 | 9 |
| 2022 | 5 | 16 |
| 2023 | 6 | 8 |
| 2024 | 14 | 36 |
| 2025 | 16 | 14 |
| 2026 | 8 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for operating a temperature-controlled circulation system and temperature-controlled circulation system8 Sep 2026US 12,729,518 B2Ltz—Zentrum FüR Luft—Und Trinkwasserhygiene GmbH
- 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.
- Constant-temperature water supply system employing carbon dioxide heat pump, and control method therefor26 May 2026US 12,638,191 B2Jiangsu Sujing Group Co., Ltd.
- Method for operating a circulation system, and circulation system19 May 2026US 12,631,010 B2Ltz—Zentrum FüR Luft—Und Trinkwasserhygiene GmbH
- 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
- Water heater with multiple condensers7 May 2026US 2026/0126210 A1
- Solar heating systems and methods for providing demand response assistance to electric heat pumps and water heaters19 Mar 2026US 2026/0078912 A1Duke Energy Corporation
- Integrated system for heating water12 Feb 2026US 2026/0043584 A1Carnot Labs, Inc.
Most cited
By later US patents
- Microprocessor control for a heat pump water heater70US 6,212,894 B1WaterFurnace International, Inc. · 2001
- Hot-water supply system with heat pump cycle37US 6,467,289 B2Central Research Institute of Electric Power Industry · 2002
- Control apparatus and method for electric heater with external heat source35US 5,367,602 ALennox Industries Inc. · 1994
- Heat pump water heater25US 4,330,309 A1982
- Hot-water supply system23US 6,627,858 B2Central Research Institute of Electric Power Industry · 2003