Don Howard Dvorak

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Hinsdale, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for special call detection and billing treatment
- Patent number 6,415,024
- Issue date Jul 2, 2002
- Lucent Technologies Inc.
- James Patrick Dunn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Detecting high usage telecommunications lines
- Patent number 5,905,785
- Issue date May 18, 1999
- Lucent Technologies Inc.
- James Patrick Dunn
- H04 - ELECTRIC COMMUNICATION TECHNIQUE