F25B 2500/26
Problems to be solved: characterised by the startup of the refrigeration cycle
Official title: characterised by the startup of the refrigeration cycle
F25B2500/26 (Problems to be solved: characterised by the startup of the refrigeration cycle) appears on 437 US grants and 503 published applications in this corpus.
Search patents in F25B- Granted patents
- 437
- Published applications
- 503
- Assignees
- 201
- Inventors
- 1,163
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 0 |
| 2002 | 9 | 13 |
| 2003 | 19 | 14 |
| 2004 | 9 | 14 |
| 2005 | 9 | 26 |
| 2006 | 10 | 15 |
| 2007 | 12 | 17 |
| 2008 | 5 | 14 |
| 2009 | 7 | 26 |
| 2010 | 12 | 14 |
| 2011 | 10 | 14 |
| 2012 | 11 | 22 |
| 2013 | 10 | 19 |
| 2014 | 6 | 17 |
| 2015 | 17 | 20 |
| 2016 | 16 | 19 |
| 2017 | 26 | 35 |
| 2018 | 27 | 34 |
| 2019 | 25 | 22 |
| 2020 | 36 | 29 |
| 2021 | 19 | 22 |
| 2022 | 19 | 25 |
| 2023 | 21 | 20 |
| 2024 | 21 | 23 |
| 2025 | 17 | 12 |
| 2026 | 9 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Control method and device suitable for air conditioner in high drop mode15 Sep 2026US 12,736,247 B2Carrier Corporation
- Test chamber and method for its operation5 May 2026US 12,618,767 B2Weiss Technik GmbH
- Refrigeration cycle system14 Apr 2026US 12,601,526 B2Daikin Industries, Ltd.
- Refrigerant system and controlling method thereof for equalizing pressure difference between oil separator and evaporator14 Apr 2026US 12,601,530 B2Fu Sheng Industrial Co., Ltd.
- Batch oil return system and method6 Aug 2026US 2026/0227103 A1John Bean Technologies Corporation
- Refrigeration cycle apparatus23 Jul 2026US 2026/0210610 A1Daikin Industries, Ltd.
- Rapid restart chiller system16 Jul 2026US 2026/0202076 A1Trane International Inc.
- Server device, refrigeration cycle system, and management method9 Jul 2026US 2026/0194276 A1Daikin Industries, Ltd.
- Systems and Methods for Detecting Malfunctions in Refrigerant Based Systems based on Changes in Measured System Metrics11 Jun 2026US 2026/0160461 A1
Most cited
By later US patents
- Refrigeration unit control with shutdown evaluation and automatic restart107US 5,454,229 AThermo King Corporation · 1995
- Controlled refrigeration system106US 4,614,089 AGeneral Services Engineering, Inc. · 1986
- Control system for refrigerating apparatus83US 5,224,354 AHitachi, Ltd. · 1993
- Control method for starting an air conditioner compressor81US 5,323,619 ASamsung Electronics Co., Ltd. · 1994
- Refrigeration system having a modulation valve which also performs function of compressor throttling valve79US 4,977,751 AThermo King Corporation · 1990