Inventor · disambiguated record
Derek Ray Parkins
Also filed as: PARKINS DEREK RAY
3 granted patents·43 citations·filing 1974–1976
70Inventor score
Top patents by PatentIndex Score
3 records- 0178US4051937AHydraulic clutch release mechanism for motor vehiclesSKF IND TRADING & DEV·Filed 1976·Granted Oct 4, 1977·23 cites·6 claims
- 0268US4069904AHydraulic clutch release mechanism for motor vehiclesSKF IND TRADING & DEV·Filed 1976·Granted Jan 24, 1978·17 cites·6 claims
- 0323US3970177AHydraulic release mechanism for clutchesSKF TRADING AND DEV CO B V·Filed 1974·Granted Jul 20, 1976·3 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →