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
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →