F25B 2313/0251
Being defrosted alternately
Official title: being defrosted alternately
F25B2313/0251 (Being defrosted alternately) appears on 49 US grants and 53 published applications in this corpus.
Search patents in F25B- Granted patents
- 49
- Published applications
- 53
- Assignees
- 13
- Inventors
- 109
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 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 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 4 |
| 2014 | 0 | 3 |
| 2015 | 0 | 2 |
| 2016 | 2 | 3 |
| 2017 | 4 | 5 |
| 2018 | 5 | 4 |
| 2019 | 5 | 6 |
| 2020 | 5 | 2 |
| 2021 | 4 | 4 |
| 2022 | 1 | 6 |
| 2023 | 2 | 3 |
| 2024 | 4 | 2 |
| 2025 | 5 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air conditioner11 Nov 2025US 12,467,666 B2LG Electronics Inc.
- Air conditioner with defrosting operation and method for controlling the same8 Jul 2025US 12,352,480 B2Samsung Electronics Co., Ltd.
- Air-conditioning device24 Jun 2025US 12,339,019 B2Mitsubishi Electric Corporation
- Air-conditioning apparatus with defrost bypass circuit28 Jan 2025US 12,209,761 B2Mitsubishi Electric Corporation
- Air conditioner and control method7 Jan 2025US 12,188,678 B2Carrier Japan Corporation
- Air conditioner16 Jul 2026US 2026/0202107 A1Fujitsu General Limited
- Air-conditioning apparatus14 Mar 2024US 2024/0085044 A1Mitsubishi Electric Corporation
- Air conditioner14 Mar 2024US 2024/0085071 A1LG Electronics Inc.
- Air-conditioning device21 Dec 2023US 2023/0408122 A1Mitsubishi Electric Corporation
- Air-conditioning apparatus21 Dec 2023US 2023/0408123 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Heat exchange apparatus and method having two refrigeration circuits45US 4,332,137 ACarrier Corporation · 1982
- Multiroom air conditioner and driving method therefor25US 5,467,604 ASanyo Electric Co., Ltd. · 1995
- Multiple compressor heat pump with coordinated defrost22US 4,157,649 ACarrier Corporation · 1979
- Apparatus and method for defrosting a heat exchanger in a refrigeration circuit21US 4,565,070 ACarrier Corporation · 1986
- Heat pump defrosting system and method20US 9,772,124 B2Nortek Air Solutions Canada, Inc. · 2017