F25B 2313/00
Compression machines, plants or systems with reversible cycle not otherwise provided for
F25B2313/00 (Compression machines, plants or systems with reversible cycle not otherwise provided for) appears on 2,294 US grants and 2,691 published applications in this corpus.
Search patents in F25B- Granted patents
- 2,294
- Published applications
- 2,691
- Assignees
- 453
- Inventors
- 3,576
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 12 | 0 |
| 1982 | 12 | 0 |
| 1983 | 5 | 0 |
| 1984 | 11 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 13 | 0 |
| 1988 | 12 | 0 |
| 1989 | 9 | 0 |
| 1990 | 15 | 0 |
| 1991 | 21 | 0 |
| 1992 | 23 | 0 |
| 1993 | 20 | 0 |
| 1994 | 19 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 23 | 0 |
| 1998 | 27 | 0 |
| 1999 | 18 | 0 |
| 2000 | 24 | 0 |
| 2001 | 16 | 4 |
| 2002 | 19 | 19 |
| 2003 | 19 | 27 |
| 2004 | 31 | 46 |
| 2005 | 29 | 43 |
| 2006 | 22 | 70 |
| 2007 | 42 | 37 |
| 2008 | 17 | 55 |
| 2009 | 21 | 71 |
| 2010 | 39 | 80 |
| 2011 | 38 | 97 |
| 2012 | 39 | 93 |
| 2013 | 31 | 101 |
| 2014 | 40 | 100 |
| 2015 | 70 | 176 |
| 2016 | 94 | 123 |
| 2017 | 142 | 122 |
| 2018 | 155 | 116 |
| 2019 | 154 | 153 |
| 2020 | 134 | 203 |
| 2021 | 128 | 195 |
| 2022 | 174 | 221 |
| 2023 | 124 | 175 |
| 2024 | 188 | 175 |
| 2025 | 148 | 110 |
| 2026 | 56 | 79 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F25B 2313/023Compression machines, plants or systems with reversible cycle not otherwise provided forIndexing code1,096
- F25B 2313/027Compression machines, plants or systems with reversible cycle not otherwise provided forIndexing code998
- F25B 2313/031Sensor arrangementsIndexing code542
- F25B 2313/025Compression machines, plants or systems with reversible cycle not otherwise provided forIndexing code427
- F25B 2313/029Control issuesIndexing code420
- F25B 2313/003Indoor unit with water as a heat sink or heat sourceIndexing code247
- F25B 2313/006Two pipes connecting the outdoor side to the indoor side with multipleIndexing code228
- F25B 2313/007Three pipes connecting the outdoor side to the indoor side with multipleIndexing code152
All 15 subgroupsShow fewer
- F25B 2313/021Indoor unit or outdoor unit with auxiliary heat exchanger not forming partIndexing code148
- F25B 2313/004Outdoor unit with water as a heat sink or heat sourceIndexing code116
- F25B 2313/005Outdoor unit expansion valvesIndexing code94
- F25B 2313/002GeothermalIndexing code78
- F25B 2313/009Indoor unit in circulation with outdoor unit in first operation mode, indoorIndexing code66
- F25B 2313/008Refrigerant heatersIndexing code52
- F25B 2313/001Compression machines, plants or systems with reversible cycle not otherwise provided forIndexing code17
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- Systems and methods for integrating a water heating unit and a heat pump1 Oct 2026US 2026/0298489 A1
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- Refrigeration cycle apparatus1 Oct 2026US 2026/0298506 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Heating and cooling system with variable capacity compressor154US 5,628,201 ACopeland Corporation · 1997
- Combined ambient-air and earth exchange heat pump system141US 5,461,876 A1995
- Compressor with liquid injection131US 5,076,067 ACopeland Corporation · 1991
- Ethanol production by Escherichia coli strains co-expressing Zymomonas PDC and ADH genes126US 5,000,000 AUniversity of Florida · 1991
- Air conditioning system with variable condenser reheat for enhanced dehumidification125US 6,826,921 B1Lennox Industries Inc. · 2004