Gary L. Dorst

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Brookfield, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Semi-automated operator assistance telecommunication calls
- Patent number 5,046,183
- Issue date Sep 3, 1991
- AT&T Bell Laboratories
- Gary L. Dorst
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time and charges information delivery for operator assistance telec...
- Patent number 5,043,983
- Issue date Aug 27, 1991
- AT&T Bell Laboratories
- Gary L. Dorst
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automated booking of telecommunications calls
- Patent number 4,969,185
- Issue date Nov 6, 1990
- AT&T Bell Laboratories
- Gary L. Dorst
- H04 - ELECTRIC COMMUNICATION TECHNIQUE