CPC Subgroup
F03B 15/10 without retroactive action
Full Title
Controlling (controlling in general G05 ) > by varying liquid flow > of turbines (rotors having adjustable blades F03B3/06, F03B3/14; adjustable guide vanes F03B3/18; specially adapted for turbines with jets of high-velocity liquid impinging on bladed or like rotors F03B15/20) > Regulating, i.e. acting automatically > by speed, e.g. by measuring electric frequency or liquid flow > without retroactive action
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