Esther L. Davenport

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Holmdel, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Personalized information service system
- Patent number 5,694,459
- Issue date Dec 2, 1997
- AT&T
- Marjorie Susan Backaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Calling party-paid wireless telephone service
- Patent number 5,557,664
- Issue date Sep 17, 1996
- AT&T
- Elaine G. Burns
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for switching telephone calls to information service providers
- Patent number 5,459,779
- Issue date Oct 17, 1995
- AT&T IPM Corp.
- Marjorie S. Backaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone information service system using digital and out-of-band...
- Patent number 5,444,713
- Issue date Aug 22, 1995
- AT&T Corp.
- Marjorie S. Backaus
- H04 - ELECTRIC COMMUNICATION TECHNIQUE