F24F 3/10
With separate supply lines and common return line for hot and cold
Official title: with separate supply lines and common return line for hot and cold heat-exchange fluids {i.e. so-called "3-conduit" system}
F24F3/10 (With separate supply lines and common return line for hot and cold) appears on 16 US grants and 16 published applications in this corpus.
Search patents in F24F- Granted patents
- 16
- Published applications
- 16
- Assignees
- 12
- Inventors
- 31
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 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 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 3 |
| 2019 | 1 | 1 |
| 2020 | 2 | 2 |
| 2021 | 5 | 0 |
| 2022 | 0 | 4 |
| 2023 | 3 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Terminal unit and method for improved indoor cooling19 May 2026US 12,631,368 B2FT Energy Controls, LLC
- Integrated space conditioning and water heating/cooling systems and methods thereto24 Dec 2024US 12,173,909 B2Rheem Manufacturing Company
- Variable refrigerant flow system with zone grouping26 Sep 2023US 11,768,003 B2Johnson Controls Tyco IP Holdings LLP
- Integrated space conditioning and water heating/cooling systems and methods thereto29 Aug 2023US 11,739,952 B2Rheem Manufacturing Company
- Multi-type air conditioner18 Apr 2023US 11,629,864 B2LG Electronics Inc.
- Integrated space conditioning and water heating/cooling systems and methods thereto20 Feb 2025US 2025/0060114 A1Rheem Manufacturing Company
- Integrated space conditioning and water heating/cooling systems and methods thereto9 Nov 2023US 2023/0358415 A1Rheem Manufacturing Company
- Variable refrigerant flow system with zone grouping5 Oct 2023US 2023/0312174 A1Johnson Controls Tyco IP Holdings LLP
- Terminal unit and method for improved indoor cooling19 May 2022US 2022/0154972 A1Chilled Beam Controls, LLC
- Multi-type air conditioner17 Feb 2022US 2022/0049860 A1LG Electronics Inc.
Most cited
By later US patents
- Air conditioning system having safety features for determining and for eliminating dangerous conditions in the form of fire, smoke, or unusually high temperatures8US 4,063,595 A1977
- Cogeneration systems and methods for generating heating and electricity2US 11,041,637 B2Imby Energy, Inc. · 2021
- Cogeneration systems and methods for generating heating and electricity1US 11,041,635 B2Imby Energy, Inc. · 2021