Assignee
PROCTOR & ASSOC CO
5 granted patents·76 citations·filing 1974–1977
Top patents by PatentIndex Score
5 records- 0183US4118597AMethod and apparatus for detecting direct currents in a transmission linePROCTOR & ASSOC CO·Filed 1975·Granted Oct 3, 1978·33 cites·2 claims
- 0262US4126771ATelephone line lifting apparatusPROCTOR & ASSOC CO·Filed 1977·Granted Nov 21, 1978·12 cites·19 claims
- 0360US3944753AApparatus for distinguishing voice and other noise signals from legitimate multi-frequency tone signals present on telephone or similar communication linesPROCTOR & ASSOC CO·Filed 1974·Granted Mar 16, 1976·13 cites·12 claims
- 0458US4099031AMethod and apparatus for automatically identifying an individual calling party on a multiparty telephone linePROCTOR & ASSOC CO·Filed 1976·Granted Jul 4, 1978·10 cites·29 claims
- 0552US4001512AAutomatic telephone number identification circuitPROCTOR & ASSOC CO·Filed 1975·Granted Jan 4, 1977·8 cites·24 claims
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