Assignee
YOUNG TIMOTHY TUNG JEN
2 granted patents·19 citations·filing 1975–1976
Technology mixB62M2
Top patents by PatentIndex Score
2 records- 0166US4063747ANoiseless ratchet drive mechanism for the bicycle and the likeYOUNG TIMOTHY TUNG JEN·Filed 1975·Granted Dec 20, 1977·17 cites·2 claims
- 0230US4117915AReciprocating lever friction drive mechanism for a bicycle or other occupant propelled vehicleYOUNG TIMOTHY TUNG JEN·Filed 1976·Granted Oct 3, 1978·2 cites·10 claims
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