F25B 2600/027
By controlling pressure
Official title: by controlling pressure
F25B2600/027 (By controlling pressure) appears on 153 US grants and 182 published applications in this corpus.
Search patents in F25B- Granted patents
- 153
- Published applications
- 182
- Assignees
- 86
- Inventors
- 386
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 4 |
| 2003 | 4 | 3 |
| 2004 | 5 | 5 |
| 2005 | 1 | 4 |
| 2006 | 3 | 3 |
| 2007 | 1 | 4 |
| 2008 | 4 | 2 |
| 2009 | 2 | 2 |
| 2010 | 0 | 4 |
| 2011 | 1 | 3 |
| 2012 | 4 | 6 |
| 2013 | 0 | 4 |
| 2014 | 1 | 7 |
| 2015 | 2 | 25 |
| 2016 | 7 | 6 |
| 2017 | 10 | 10 |
| 2018 | 18 | 8 |
| 2019 | 12 | 20 |
| 2020 | 15 | 14 |
| 2021 | 17 | 9 |
| 2022 | 9 | 14 |
| 2023 | 11 | 6 |
| 2024 | 9 | 11 |
| 2025 | 6 | 6 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for operating a compressor of an energy efficient heat pump16 Jun 2026US 12,656,028 B2Tyco Fire & Security GmbH
- Refrigeration system24 Mar 2026US 12,584,669 B2Dyson Technology Limited
- Cryogenic refrigeration system and cryogenic pump24 Mar 2026US 12,584,670 B2Leybold Dresden GMBH
- Air conditioner23 Dec 2025US 12,504,211 B2LG Electronics Inc.
- Refrigeration circuit device, and method for operating a refrigeration circuit device of this type7 Oct 2025US 12,439,560 B2Viessmann Climate Solutions SE
- Systems and methods for controlling operation of a chiller20 Aug 2026US 2026/0243483 A1Tyco Fire & Security GmbH
- Air conditioner23 Jul 2026US 2026/0210611 A1Daikin Industries, Ltd.
- Freezing apparatus28 Aug 2025US 2025/0271179 A1Panasonic Intellectual Property Management Co., Ltd.
- Method and apparatus for staged startup of air-cooled low charged packaged ammonia refrigeration system14 Aug 2025US 2025/0257915 A1Evapco, Inc.
- Test chamber and control method26 Jun 2025US 2025/0208027 A1
Most cited
By later US patents
- Method of refrigeration case control96US 5,533,347 ANovar Electronics Corporation · 1996
- Heat treat hot gas system49US 6,735,967 B1Carrier Commercial Refrigeration, Inc. · 2004
- Method for operating a transcritical refrigeration system28US 6,694,763 B2Praxair Technology, Inc. · 2004
- Hot gas heat treatment system24US 6,948,327 B2Carrier Commercial Refrigeration, Inc. · 2005
- Electronic control of refrigeration systems22US 5,867,995 AEnergy Controls International, Inc. · 1999