Inventor · disambiguated record
John R. Gerlach
Also filed as: GERLACH JOHN R
3 granted patents·98 citations·filing 1974–1978
72Inventor score
Top patents by PatentIndex Score
3 records- 0188US3945671ASeal lock and the like incorporating permanently secured single engagementEMHART CORP·Filed 1974·Granted Mar 23, 1976·59 cites·4 claims
- 0279US4120184ALock with normally non-removable key and auxiliary key removal device for use in interior locksetsEMHART IND·Filed 1977·Granted Oct 17, 1978·37 cites·14 claims
- 0326US4215557ALock with key slot manipulation barrierEMHART IND·Filed 1978·Granted Aug 5, 1980·2 cites·14 claims
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