Inventor
MULLICH RICHARD O
US10 patents
⚠️ This page may combine multiple inventors who share the name “MULLICH RICHARD O”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TRE CORP
9 patentsUS4593542AJun 10, 1986
Deadbolt assembly having selectable backset distance
TRE CORP71 citations93
US4397168AAug 9, 1983
Door reinforcement and lock guard plate
TRE CORP36 citations91
US3990277ANov 9, 1976
Lock mechanism with disengageable knob
TRE CORP51 citations91
US4656849AApr 14, 1987
Deadbolt assembly having selectable backset distance
TRE CORP47 citations89
US4489576ADec 25, 1984
Deadbolt assembly
TRE CORP33 citations89
US4446707AMay 8, 1984
Deadbolt
TRE CORP34 citations89
US4564229AJan 14, 1986
Latch assembly having selectable backset distance
TRE CORP25 citations81
US4300374ANov 17, 1981
Key retaining cylinder for a lock
TRE CORP24 citations81
US4345449AAug 24, 1982
High security cylindrical bored lock
TRE CORP8 citations72