Assignee

WALKER RALPH S

US·2 granted patents·40 citations·filing 1978–2010

Technology mixA61B1 A61M1 F16D1 F16H1

Top patents by PatentIndex Score

2 records

0177US8292785B2Control of torque direction transition in a powershift transmissionWALKER RALPH S·Filed 2010·Granted Oct 23, 2012·5 cites·20 claims
0248US4192303AFlow regulating device for arterial catheter systemsWALKER RALPH S·Filed 1978·Granted Mar 11, 1980·35 cites·10 claims

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