F25B 2500/29
High ambient temperatures
F25B2500/29 (High ambient temperatures) appears on 53 US grants and 57 published applications in this corpus.
Search patents in F25B- Granted patents
- 53
- Published applications
- 57
- Assignees
- 37
- Inventors
- 140
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 2 |
| 2007 | 1 | 3 |
| 2008 | 0 | 1 |
| 2009 | 3 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 1 | 1 |
| 2017 | 3 | 9 |
| 2018 | 6 | 9 |
| 2019 | 2 | 6 |
| 2020 | 12 | 5 |
| 2021 | 5 | 2 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compressor frequency regulation method, control apparatus, heat exchange device and electronic device7 Oct 2025US 12,435,915 B2Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd.
- Modular waterside economizer integrated with air-cooled chillers20 Aug 2024US 12,066,221 B2Carrier Corporation
- Carbon dioxide cooling system with subcooling23 Jul 2024US 12,044,453 B2Lennox Industries Inc.
- Heat pump arrangement having a controllable heat exchanger and method for producing a heat pump arrangement26 Dec 2023US 11,852,388 B2Efficient Energy GmbH
- Test chamber and a method for its control24 Jan 2023US 11,561,211 B2Weiss Technik GmbH
- Two-stage compression in a medium-temperature co2 cdu application23 Jul 2026US 2026/0210604 A1Heatcraft Refrigeration Products LLC
- System and method for decoupling compressors and switching refrigerant flow based on ambient temperature28 May 2026US 2026/0146772 A1Heatcraft Refrigeration Products LLC
- Precise Adiabatic Water Control5 Sep 2024US 2024/0295352 A1
- Compressor Frequency Regulation Method, Control Apparatus, Heat Exchange Device and Electronic Device28 Dec 2023US 2023/0417466 A1Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd.
- Carbon dioxide cooling system with subcooling27 Jan 2022US 2022/0026117 A1Lennox Industries Inc.
Most cited
By later US patents
- Method and apparatus for condensing and subcooling refrigerant88US 5,115,644 A1992
- Refrigeration system energy controller72US 4,602,484 A1986
- Automotive air conditioning system46US 5,632,156 ANippondenso Co., Ltd. · 1997
- Adaptive temperature control system43US 4,292,813 AWhirlpool Corporation · 1981
- Multi-stage refrigeration apparatus and method35US 5,079,929 A1992