F24H 15/39
Control of valves for distributing refrigerant to different evaporators or condensers in
Official title: Control of valves for distributing refrigerant to different evaporators or condensers in heat pumps
F24H15/39 (Control of valves for distributing refrigerant to different evaporators or condensers in) appears on 18 US grants and 33 published applications in this corpus.
Search patents in F24H- Granted patents
- 18
- Published applications
- 33
- Assignees
- 14
- Inventors
- 70
- Latest grant
- 21 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 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 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 0 | 1 |
| 2016 | 2 | 7 |
| 2017 | 0 | 0 |
| 2018 | 5 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 3 |
| 2021 | 0 | 4 |
| 2022 | 3 | 1 |
| 2023 | 4 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 4 |
| 2026 | 0 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and methods for heating water with refrigerant from air conditioning system21 Jan 2025US 12,203,683 B2Rheem Manufacturing Company
- Integrated space conditioning and water heating/cooling systems and methods thereto24 Dec 2024US 12,173,909 B2Rheem Manufacturing Company
- Integrated space conditioning and water heating/cooling systems and methods thereto29 Aug 2023US 11,739,952 B2Rheem Manufacturing Company
- Heat pump boiler16 May 2023US 11,649,971 B2LG Electronics Inc.
- Smart farm system11 Apr 2023US 11,622,511 B2Korea Institute of Industrial Technology
- 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
- Heat pump-type hot-water heating device6 Aug 2026US 2026/0227097 A1Fujitsu General Limited
- Heat pump, operation method of heat pump, and server4 Jun 2026US 2026/0153268 A1LG Electronics Inc.
Most cited
By later US patents
- Heating system10US 4,124,177 A1978
- Apparatus and methods for heating water with refrigerant from air conditioning system7US 9,879,881 B2Rheem Manufacturing Company · 2018
- Apparatus and methods for pre-heating water with air conditioning unit or heat pump4US 9,389,000 B2Rheem Manufacturing Company · 2016
- Apparatus and methods for heating water with refrigerant from air conditioning system3US 10,871,307 B2Rheem Manufacturing Company · 2020
- Apparatus and method for hybrid water heating and air cooling and control thereof2US 10,041,702 B2Rheem Manufacturing Company · 2018