Assignee
GTE BUSINESS COMM SYST
US·15 granted patents·475 citations·filing 1982–1984
Top patents by PatentIndex Score
15 records- 0193US4464543ANetwork control center call traceGTE BUSINESS COMM SYST·Filed 1982·Granted Aug 7, 1984·210 cites·15 claims
- 0293US4455455AInternodal conference call administratorGTE BUSINESS COMM SYST·Filed 1982·Granted Jun 19, 1984·110 cites·20 claims
- 0388US4456788ATelecommunication trunk circuit reporter and advisorGTE BUSINESS COMM SYST·Filed 1982·Granted Jun 26, 1984·91 cites·3 claims
- 0458US4529843ASubscribers telephone hold circuit with automatic disconnectGTE BUSINESS COMM SYST·Filed 1983·Granted Jul 16, 1985·11 cites·6 claims
- 0547US4591666AProtection circuitry for subscriber's telephone circuit equipped with repertory memoryGTE BUSINESS COMM SYST·Filed 1983·Granted May 27, 1986·7 cites·1 claims
- 0647US4567324ASecretarial telephone station for use with a secretarial answering systemGTE BUSINESS COMM SYST·Filed 1983·Granted Jan 28, 1986·9 cites·10 claims
- 0743US4581694AInverter using parallel connected series pre-regulator and a synchronized switchGTE BUSINESS COMM SYST·Filed 1984·Granted Apr 8, 1986·7 cites·6 claims
- 0838US4574165ASecretarial answering systemGTE BUSINESS COMM SYST·Filed 1983·Granted Mar 4, 1986·6 cites·14 claims
- 0938US4523057AHigh gain cascode amplifier with negative feedbackGTE BUSINESS COMM SYST·Filed 1984·Granted Jun 11, 1985·4 cites·9 claims
- 1035US4536620AMaster unlock circuit for an electronic telephoneGTE BUSINESS COMM SYST·Filed 1983·Granted Aug 20, 1985·5 cites·9 claims
- 1133US4555597ATransient resistant key operated pulse generating calling device circuitGTE BUSINESS COMM SYST·Filed 1983·Granted Nov 26, 1985·3 cites·4 claims
- 1232US4527016ACurrent regulated pulse dialer with memory retention circuitGTE BUSINESS COMM SYST·Filed 1983·Granted Jul 2, 1985·4 cites·8 claims
- 1325US4492823ADual timing circuit for telephone subscriber's instrumentGTE BUSINESS COMM SYST·Filed 1983·Granted Jan 8, 1985·3 cites·10 claims
- 1425US4491689AAmplifier for use with telephone transmitter mounted in hand held telephone unitGTE BUSINESS COMM SYST·Filed 1983·Granted Jan 1, 1985·5 cites·7 claims
- 159US4433250APower supply control apparatusGTE BUSINESS COMM SYST·Filed 1982·Granted Feb 21, 1984·0 cites·5 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →