Assignee
MORRISON DOUGLAS M
US·4 granted patents·63 citations·filing 1989–1991
Technology mixB63H3
Top patents by PatentIndex Score
4 records- 0176USD316700SPropeller blades and hubMORRISON DOUGLAS M·Filed 1989·Granted May 7, 1991·16 cites·1 claims
- 0273US5104291AVariable pitch propeller blade hub and drive and adjusting mechanism thereforMORRISON DOUGLAS M·Filed 1990·Granted Apr 14, 1992·20 cites·13 claims
- 0366US5102301AVariable pitch propeller blades, hub and drive and adjusting mechanism thereforMORRISON DOUGLAS M·Filed 1991·Granted Apr 7, 1992·16 cites·29 claims
- 0457US5017090AVariable pitch propeller blades and drive and adjusting mechanism thereforMORRISON DOUGLAS M·Filed 1989·Granted May 21, 1991·11 cites·49 claims
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