Assignee
FRL INC
US4 patents
Top patents by PatentIndex Score
US4514692AApr 30, 1985
Metal detector and discriminator using differentiation for background signal suppression
FRL INC72 citations94
US6583625B1Jun 24, 2003
Metal detector and method in which mineralization effects are eliminated
FRL INC19 citations91
US4628265ADec 9, 1986
Metal detector and classifier with automatic compensation for soil magnetic minerals and sensor misalignment
FRL INC52 citations91
US6133829AOct 17, 2000
Walk-through metal detector system and method
FRL INC70 citations85