Dooyong Lee

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West Orange, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for facilitating the making of card calls
- Patent number 5,675,607
- Issue date Oct 7, 1997
- AT&T
- Thomas Alesio
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for handling in-bound telemarketing calls
- Patent number 5,537,470
- Issue date Jul 16, 1996
- AT&T Corp.
- Dooyong Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Calling number identification using speech recognition
- Patent number 5,504,805
- Issue date Apr 2, 1996
- AT&T Corp.
- Dooyong Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for facilitating the making of card calls
- Patent number 5,450,479
- Issue date Sep 12, 1995
- AT&T Corp.
- Thomas Alesio
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic signaling-type indicator for use in subsequent interactiv...
- Patent number 5,416,835
- Issue date May 16, 1995
- AT&T Corp.
- Dooyong Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE