Assignee
VISUAL METHODS INC
4 granted patents·155 citations·filing 1974–1989
Top patents by PatentIndex Score
4 records- 0186US4222662AAccess control systemVISUAL METHODS INC·Filed 1979·Granted Sep 16, 1980·58 cites·7 claims
- 0271US4963962AOptical surveillance assembly and cameraVISUAL METHODS INC·Filed 1989·Granted Oct 16, 1990·44 cites·20 claims
- 0369US4175775AAccess control systemVISUAL METHODS INC·Filed 1978·Granted Nov 27, 1979·34 cites·7 claims
- 0468US3997723ACompact unit for optical security systemVISUAL METHODS INC·Filed 1974·Granted Dec 14, 1976·19 cites·13 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →