Assignee
HARTZELL PROPELLER INC
US·7 granted patents·275 citations·filing 1976–1990
Top patents by PatentIndex Score
7 records- 0192US4302155AAir craft propeller assembly with composite bladesHARTZELL PROPELLER INC·Filed 1979·Granted Nov 24, 1981·82 cites·9 claims
- 0282US4810167AComposite aircraft propeller bladeHARTZELL PROPELLER INC·Filed 1986·Granted Mar 7, 1989·81 cites·31 claims
- 0367US4699568AAircraft propeller with improved spinner assemblyHARTZELL PROPELLER INC·Filed 1986·Granted Oct 13, 1987·39 cites·3 claims
- 0464US4097189AAircraft propeller and blade pitch control systemHARTZELL PROPELLER INC·Filed 1976·Granted Jun 27, 1978·28 cites·20 claims
- 0550US5020741AAircraft propeller with improved electrically de-icer leadsHARTZELL PROPELLER INC·Filed 1989·Granted Jun 4, 1991·22 cites·15 claims
- 0634US5061153AAircraft propeller assembly with blade pitch reset for ground idleHARTZELL PROPELLER INC·Filed 1990·Granted Oct 29, 1991·14 cites·18 claims
- 0730US4904157AAircraft propeller assembly with blade pitch reset for ground idleHARTZELL PROPELLER INC·Filed 1988·Granted Feb 27, 1990·9 cites·18 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →