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CPC Subgroup
B64U 30/293

Foldable or collapsible rotors or rotor supports

Full Title

Means for producing lift; Empennages; Arrangements thereof > Rotors; Rotor supports > Constructional aspects of rotors or rotor supports; Arrangements thereof > Foldable or collapsible rotors or rotor supports

Top Applicants

Top 10 applicants by patent filingsfor class B64, 2013–2023, worldwide · Source: EPO PATSTAT

  1. BOEING COMPANY US 9,861
  2. AIRBUS OPERATIONS DE 3,766
  3. AIRBUS OPERATIONS FR 3,112
  4. SZ DJI TECHNOLOGY COMPANY CN 2,840
  5. HAMILTON SUNDSTRAND US 2,753
  6. GOODRICH CORPORATION US 2,427
  7. AIRBUS OPERATIONS GB 2,356
  8. BOEING COMPANY 2,057
  9. SAFRAN AIRCRAFT ENGINES FR 1,815
  10. AIRBUS OPERATIONS 1,723