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CPC Subgroup
F03D 9/10

Combinations of wind motors with apparatus storing energy

Full Title

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) > Combinations of wind motors with apparatus storing energy

6 direct subcodes

Child Classifications

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  • F03D 9/11 storing electrical energy
  • F03D 9/12 storing kinetic energy, e.g. using flywheels
  • F03D 9/17 storing energy in pressurised fluids
  • F03D 9/18 storing heat
  • F03D 9/19 storing chemical energy, e.g. using electrolysis

Top Applicants

Top 10 applicants by patent filingsfor class F03, 2013–2023, worldwide · Source: EPO PATSTAT

  1. VESTAS DK 3,718
  2. WOBBEN PROPERTIES DE 3,602
  3. SIEMENS GAMESA RENEWABLE ENERGY DK 3,016
  4. GE (GENERAL ELECTRIC COMPANY) US 2,594
  5. SIEMENS DE 1,082
  6. BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT COMPANY 709
  7. LM WIND POWER DK 671
  8. WOBBEN PROPERTIES 660
  9. SENVION DE 555
  10. BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT COMPANY CN 536