Inventor · disambiguated record
Paul R. Proefrock
Also filed as: PROEFROCK PAUL R
4 granted patents·76 citations·filing 1977–1977
77Inventor score
Files withSARGENT & GREENLEAF4
Top patents by PatentIndex Score
4 records- 0181US4083212ARotary disc tumbler cylinder lockSARGENT & GREENLEAF·Filed 1977·Granted Apr 11, 1978·39 cites·20 claims
- 0258US4107965APadlock having knuckle type anti-wedge-attack structureSARGENT & GREENLEAF·Filed 1977·Granted Aug 22, 1978·18 cites·11 claims
- 0354US4102161AEnshrouding lock device for paired locking bars and the likeSARGENT & GREENLEAF·Filed 1977·Granted Jul 25, 1978·14 cites·22 claims
- 0435US4104894APadlock having wedge device for resisting destructive wedge attackSARGENT & GREENLEAF·Filed 1977·Granted Aug 8, 1978·5 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →