JOSEPH KOHLER

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WOODRIDGE, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for providing telecommunications trunk group s...
- Patent number 6,490,347
- Issue date Dec 3, 2002
- AT&T Corp.
- Craig L. DeCaluwe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for providing back-up, in-band signaling in a...
- Patent number 6,275,578
- Issue date Aug 14, 2001
- AT&T Corp.
- Nicholas D. De Trana
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method to trap a called number in a telecommunications network
- Patent number 6,195,416
- Issue date Feb 27, 2001
- AT&T Corp.
- Craig L. DeCaluwe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR PROVIDING TELECOMMUNICATIONS TRUNK GROUP S...
- Publication number 20010040952
- Publication date Nov 15, 2001
- CRAIG L. DECALUWE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE