CPC Subgroup Additional Only
F25B 2309/14 Compression machines, plants or systems characterised by the cycle used
Full Title
Gas cycle refrigeration machines > Compression machines, plants or systems characterised by the cycle used
26 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- F25B 2309/1401 Ericsson or Ericcson cycles
- F25B 2309/1402 Pulse-tube cycles with acoustic driver
- F25B 2309/1403 Pulse-tube cycles with heat input into acoustic driver
- F25B 2309/1404 Pulse-tube cycles with loudspeaker driven acoustic driver
- F25B 2309/1405 Pulse-tube cycles with travelling waves
- F25B 2309/1406 Pulse-tube cycles with pulse tube in co-axial or concentric geometrical arrangements
- F25B 2309/1407 Pulse-tube cycles with pulse tube having in-line geometrical arrangements
- F25B 2309/1408 Pulse-tube cycles with pulse tube having U-turn or L-turn type geometrical arrangements
- F25B 2309/1409 Pulse-tube cycles with pulse tube having special type of geometrical arrangements not being a coaxial, in-line or U-turn type
- F25B 2309/1411 Pulse-tube cycles characterised by control details, e.g. tuning, phase shifting or general control
- F25B 2309/1412 Pulse-tube cycles characterised by heat exchanger details
- F25B 2309/1413 Pulse-tube cycles characterised by performance, geometry or theory
- F25B 2309/1414 Pulse-tube cycles characterised by pulse tube details
- F25B 2309/1415 Pulse-tube cycles characterised by regenerator details
- F25B 2309/1416 Pulse-tube cycles characterised by regenerator stack details
- F25B 2309/1417 Pulse-tube cycles without any valves in gas supply and return lines
- F25B 2309/1418 Pulse-tube cycles with valves in gas supply and return lines
- F25B 2309/1419 Pulse-tube cycles with pulse tube having a basic pulse tube refrigerator [PTR], i.e. comprising a tube with basic schematic
- F25B 2309/1421 Pulse-tube cycles characterised by details not otherwise provided for
- F25B 2309/1422 Pulse tubes with basic schematic including a counter flow heat exchanger instead of a regenerative heat exchanger
Top Applicants
Top 10 applicants by patent filingsfor class F25, 2013–2023, worldwide · Source: EPO PATSTAT
- LG ELECTRONICS KR 9,415
- HAIER SMART HOME 8,015
- MITSUBISHI ELECTRIC CORPORATION JP 5,758
- BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 3,827
- MIDEA 3,769
- GREE ELECTRIC APPLIANCES 3,417
- HAIER SMART HOME CN 3,403
- SAMSUNG ELECTRONICS COMPANY KR 3,329
- DAIKIN INDUSTRIES JP 2,908
- HEFEI MIDEA REFRIGERATOR COMPANY 2,186