F25B 2313/023
Compression machines, plants or systems with reversible cycle not otherwise provided for
Official title: using multiple indoor units
F25B2313/023 (Compression machines, plants or systems with reversible cycle not otherwise provided for) appears on 1,096 US grants and 1,243 published applications in this corpus.
Search patents in F25B- Granted patents
- 1,096
- Published applications
- 1,243
- Assignees
- 192
- Inventors
- 1,686
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 8 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 9 | 0 |
| 1991 | 14 | 0 |
| 1992 | 15 | 0 |
| 1993 | 13 | 0 |
| 1994 | 13 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 13 | 0 |
| 1998 | 14 | 0 |
| 1999 | 11 | 0 |
| 2000 | 17 | 0 |
| 2001 | 5 | 1 |
| 2002 | 10 | 7 |
| 2003 | 6 | 19 |
| 2004 | 16 | 30 |
| 2005 | 17 | 23 |
| 2006 | 13 | 40 |
| 2007 | 19 | 14 |
| 2008 | 10 | 17 |
| 2009 | 14 | 29 |
| 2010 | 16 | 29 |
| 2011 | 12 | 43 |
| 2012 | 12 | 52 |
| 2013 | 12 | 61 |
| 2014 | 20 | 52 |
| 2015 | 40 | 89 |
| 2016 | 57 | 51 |
| 2017 | 80 | 62 |
| 2018 | 75 | 43 |
| 2019 | 65 | 63 |
| 2020 | 50 | 91 |
| 2021 | 55 | 92 |
| 2022 | 81 | 107 |
| 2023 | 46 | 73 |
| 2024 | 86 | 77 |
| 2025 | 75 | 44 |
| 2026 | 27 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Air conditioner15 Sep 2026US 12,736,261 B2LG Electronics Inc.
- Air conditioner1 Sep 2026US 12,723,784 B2LG Electronics Inc.
- Air conditioning system25 Aug 2026US 12,716,624 B2Daikin Industries, Ltd.
- Refrigeration cycle apparatus and optimization method25 Aug 2026US 12,716,625 B2Mitsubishi Electric Corporation
- Variable refrigerant flow system and control method18 Aug 2026US 12,710,207 B2Guangdong Carrier Hvac Co., Ltd.
- Multi-type air-conditioning device8 Oct 2026US 2026/0309383 A1
- System and method for heating and cooling24 Sep 2026US 2026/0287196 A1Daikin Industries, Ltd.
- Outdoor unit for air conditioning and air conditioner20 Aug 2026US 2026/0243449 A1Carrier Japan Corporation
- Heat pump apparatus20 Aug 2026US 2026/0243473 A1Mitsubishi Electric Corporation
- Air-conditioning apparatus and evacuation method in air-conditioning apparatus20 Aug 2026US 2026/0243474 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Air conditioning system with variable condenser reheat for enhanced dehumidification125US 6,826,921 B1Lennox Industries Inc. · 2004
- System for cooling electric vehicle batteries106US 6,138,466 ADaimlerChrysler AG · 2000
- Multiple type air conditioning system which distributes appropriate amount of refrigerant to a plurality of air conditioning units96US 5,142,877 AKabushiki Kaisha Toshiba · 1992
- Modulated temperature control for environmental chamber84US 5,226,472 ALab-Line Instruments, Inc. · 1993
- Air-conditioning apparatus81US 9,322,562 B2Mitsubishi Electric Corporation · 2016