F24H 15/385
Control of expansion valves of heat pumps
F24H15/385 (Control of expansion valves of heat pumps) appears on 34 US grants and 49 published applications in this corpus.
Search patents in F24H- Granted patents
- 34
- Published applications
- 49
- Assignees
- 30
- Inventors
- 109
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 3 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 3 |
| 2012 | 0 | 3 |
| 2013 | 0 | 2 |
| 2014 | 1 | 3 |
| 2015 | 4 | 5 |
| 2016 | 2 | 3 |
| 2017 | 3 | 1 |
| 2018 | 4 | 2 |
| 2019 | 4 | 2 |
| 2020 | 2 | 2 |
| 2021 | 3 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 6 |
| 2025 | 2 | 5 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heat-pump water heater16 Dec 2025US 12,498,142 B2Mitsubishi Electric Corporation
- Combined air conditioning and water heating via expansion valve regulation25 Feb 2025US 12,235,026 B2Rheem Manufacturing Company
- Combined air conditioning and water heating via expansion valve regulation14 Nov 2023US 11,815,298 B2Rheem Manufacturing Company
- Air conditioning apparatus16 Nov 2021US 11,175,065 B2Mitsubishi Electric Corporation
- Heat pump apparatus30 Mar 2021US 10,962,267 B2Mitsubishi Electric Corporation
- Water heater system diagnostics3 Sep 2026US 2026/0258977 A1Bradford White Corporation
- Expansion system and heat pump incorporating the same24 Jul 2025US 2025/0237411 A1Bradford White Corporation
- Modular de-superheater and water heater system19 Jun 2025US 2025/0198672 A1Carrier Corporation
- Water heater5 Jun 2025US 2025/0180250 A1Kyungdong Navien Co., Ltd.
- Heat pump system and control method therefor5 Jun 2025US 2025/0180256 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Hot-water supply system with heat pump cycle37US 6,467,289 B2Central Research Institute of Electric Power Industry · 2002
- Control of space heating and water heating using variable speed heat pump35US 5,081,846 ACarrier Corporation · 1992
- Heat pump hot water supply system of hot water storage type14US 7,021,073 B2Denso Corporation · 2006
- Water heating system13US 4,481,788 AMitsubishi Denki Kabushiki Kaisha · 1984
- Heat pump water device12US 7,316,267 B2Matsushita Electric Industrial Co., Ltd. · 2008