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Rotor drives, in particular for taking off; Combination of autorotation rotors and driven rotors

Rotor drives, in particular for taking off; Combination of autorotation rotors and driven rotors · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB64C27/025
Official title{Rotor drives, in particular for taking off; Combination of autorotation rotors and driven rotors}
Display labelRotor drives, in particular for taking off; Combination of autorotation rotors and driven rotors
Total patents13

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20173
20181
20192
20201
20212
20221
20242
20261

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.