CPC Main Group
F03B 3/00 Machines or engines of reaction type; Parts or details peculiar thereto
6 direct subcodes
Child Classifications
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- F03B 3/02 with radial flow at high-pressure side and axial flow at low-pressure side of rotors, e.g. Francis turbines
- F03B 3/04 with substantially axial flow throughout rotors, e.g. propeller turbines
- F03B 3/08 with pressure-velocity transformation exclusively in rotors
- F03B 3/10 characterised by having means for functioning alternatively as pumps or turbines
- F03B 3/12 Blades; Blade-carrying rotors
- F03B 3/16 Stators
Top Applicants
Top 10 applicants by patent filingsfor class F03, 2013–2023, worldwide · Source: EPO PATSTAT
- VESTAS DK 3,718
- WOBBEN PROPERTIES DE 3,602
- SIEMENS GAMESA RENEWABLE ENERGY DK 3,016
- GE (GENERAL ELECTRIC COMPANY) US 2,594
- SIEMENS DE 1,082
- BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT COMPANY 709
- LM WIND POWER DK 671
- WOBBEN PROPERTIES 660
- SENVION DE 555
- BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT COMPANY CN 536