FRL, Inc.
4Patents
0Active
4Granted
28Portfolio score
Filing activity: May 3, 1982 → Oct 16, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4514692A | Metal detector and discriminator using differentiation for background signal suppression | Physics | 47 | Expired |
| US6133829A | Walk-through metal detector system and method | Physics | 30 | Expired |
| US4628265A | Metal detector and classifier with automatic compensation for soil magnetic minerals and sensor misalignment | Physics | 30 | Expired |
| US6583625B1 | Metal detector and method in which mineralization effects are eliminated | Physics | 10 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.