Assignee
PUTZ A FRANK
3 granted patents·23 citations·filing 1974–1977
Top patents by PatentIndex Score
3 records- 0158US4008988ARotary piston expansible chamber devicePUTZ A FRANK·Filed 1974·Granted Feb 22, 1977·18 cites·44 claims
- 0226US4030861AVariable displacement rotary piston expansible chamber devicePUTZ A FRANK·Filed 1975·Granted Jun 21, 1977·4 cites·38 claims
- 0321US4173438ARotary piston device which displaces fluid in inner and outer variable volume chambers simultaneouslyPUTZ A FRANK·Filed 1977·Granted Nov 6, 1979·1 cites·17 claims
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