F25B 2347/022
Cool gas defrosting
F25B2347/022 (Cool gas defrosting) appears on 15 US grants and 14 published applications in this corpus.
Search patents in F25B- Granted patents
- 15
- Published applications
- 14
- Assignees
- 17
- Inventors
- 50
- Latest grant
- 18 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 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 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 3 |
| 2016 | 0 | 3 |
| 2017 | 2 | 0 |
| 2018 | 2 | 0 |
| 2019 | 2 | 1 |
| 2020 | 0 | 2 |
| 2021 | 2 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Refrigerator cooling system and method for defrosting refrigerator18 Feb 2025US 12,228,317 B2Hefei Hualing Co., Ltd.
- Cooling system25 Apr 2023US 11,635,233 B2Heatcraft Refrigeration Products LLC
- Refrigeration system and method for operating same11 Oct 2022US 11,466,909 B2
- Cooling system30 Nov 2021US 11,187,445 B2Heatcraft Refrigeration Products LLC
- Heat pump air conditioning system and control method18 May 2021US 11,009,270 B2Gree Electric Appliances, Inc. of Zhuhai
- Refrigerator cooling system and method for defrosting refrigerator17 Aug 2023US 2023/0258375 A1Hefei Hualing Co., Ltd.
- Cooling system3 Feb 2022US 2022/0034564 A1Heatcraft Refrigeration Products LLC
- Heat pump air conditioning system and control method5 Nov 2020US 2020/0348053 A1Gree Electric Appliances, Inc. of Zhuhai
- Cooling system2 Jan 2020US 2020/0003468 A1Heatcraft Refrigeration Products LLC
- Refrigeration system and method for operating same4 Jul 2019US 2019/0203993 A1
Most cited
By later US patents
- Refrigeration system utilizing saturated gaseous refrigerant for defrost purposes43US 4,167,102 AEmhart Industries, Inc. · 1979
- Heat pump type hot-water supply system capable of performing defrosting operation22US 6,418,737 B1Central Research Institute of Electric Power Industry · 2002
- Multistage rotary compressor and refrigeration circuit system18US 6,748,754 B2Sanyo Electric Co., Ltd. · 2004
- Cooling system4US 11,187,445 B2Heatcraft Refrigeration Products LLC · 2021
- Defrost for transcritical vapor compression system4US 9,970,696 B2Thermo King Corporation · 2018