F25B 2313/02791
Using shut-off valves
Official title: using shut-off valves
F25B2313/02791 (Using shut-off valves) appears on 74 US grants and 62 published applications in this corpus.
Search patents in F25B- Granted patents
- 74
- Published applications
- 62
- Assignees
- 39
- Inventors
- 180
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 0 |
| 2004 | 0 | 1 |
| 2005 | 2 | 2 |
| 2006 | 0 | 4 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 2 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 5 |
| 2016 | 0 | 2 |
| 2017 | 2 | 1 |
| 2018 | 3 | 1 |
| 2019 | 2 | 3 |
| 2020 | 3 | 3 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 3 | 11 |
| 2024 | 4 | 9 |
| 2025 | 8 | 3 |
| 2026 | 6 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-temperature air conditioning system, control method thereof and transport refrigeration vehicle21 Jul 2026US 12,687,329 B2Carrier Corporation
- Heat pump for a vehicle30 Jun 2026US 12,668,101 B2Ford Global Technologies, LLC
- Refrigeration cycle system14 Apr 2026US 12,601,526 B2Daikin Industries, Ltd.
- Heat exchange system14 Apr 2026US 12,601,527 B2Mahle International GmbH
- Refrigeration cycle system13 Jan 2026US 12,523,400 B2Daikin Industries, Ltd.
- Heat pump apparatus20 Aug 2026US 2026/0243473 A1Mitsubishi Electric Corporation
- Refrigeration cycle apparatus30 Jul 2026US 2026/0218949 A1Daikin Industries, Ltd.
- Multi-split central air conditioning system for simultaneous cooling and heating30 Apr 2026US 2026/0118009 A1Jingkelun Refrigeration Equipment Co., Ltd.
- System for extracting water from the atmosphere22 Jan 2026US 2026/0022542 A1
- Fluid flow reversing device for heat exchangers3 Jul 2025US 2025/0216130 A1Trane Air Conditioning Systems (China) Co., Ltd.
Most cited
By later US patents
- Air-conditioning system56US 4,938,032 A1990
- Heat pump system with high efficiency reversible helical screw rotary compressor55US 4,058,988 ADunham-Bush, Inc. · 1977
- Three-way valve48US 4,448,211 ATokyo Shibaura Denki Kabushiki Kaisha · 1984
- Closed loop direct expansion heating and cooling system with auxiliary refrigerant pump38US 6,931,879 B12005
- Refrigeration system with auxiliary heat exchanger for supplying heat during defrost cycle and for subcooling the refrigerant during a refrigeration cycle36US 4,197,716 AHalstead Industries, Inc. · 1980