F03D WIND MOTORS
Description
Wind motors encompass machines and systems that convert wind energy into mechanical power or thrust. This subclass covers wind turbines of various types, including horizontal-axis and vertical-axis designs, as well as their functional components such as rotors, blades, nacelles, and power transmission systems. Applications range from electricity generation and mechanical work production to propulsive devices. Related auxiliary systems for control, regulation, and energy conversion are also included within this classification.
Filing statistics
CPC subclass F03D recorded 80,246 patent applications worldwide between 2013 and 2023. Annual filings grew from 6,354 in 2013 to 7,210 in 2023 (+13%), peaking at 8,699 applications in 2018. The most active applicants in class F03 are VESTAS (3,718 applications), WOBBEN PROPERTIES (3,602 applications) and SIEMENS GAMESA RENEWABLE ENERGY (3,016 applications).
Source: EPO PATSTAT, worldwide filings
9 direct subcodes
Child Classifications
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- F03D 1/00 Wind motors with rotation axis substantially parallel to the air flow entering the rotor (controlling thereof F03D7/02)
- F03D 13/00 Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D 15/00 Transmission of mechanical power
- F03D 17/00 Monitoring or testing of wind motors, e.g. diagnostics (testing during commissioning of wind motors F03D13/30)
- F03D 3/00 Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor (controlling thereof F03D7/06)
- F03D 5/00 Other wind motors (controlling thereof F03D7/00)
- F03D 7/00 Controlling wind motors (supplying or distributing electrical power H02J, e.g. arrangements for adjusting, eliminating or compensating reactive power in networks H02J3/18; controlling electric generators H02P, e.g. arrangements for controlling electric generators for the purpose of obtaining a desired output H02P9/00)
- F03D 80/00 Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D 9/00 Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations (hybrid wind-photovoltaic energy systems for the generation of electric power H02S10/12)
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