Michael H. Penrod

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Chesapeake, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Extracting and processing data derived from a common channel signal...
- Patent number 5,757,895
- Issue date May 26, 1998
- Unisys Corporation
- James Aridas
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for generating call duration billing records u...
- Patent number 5,712,908
- Issue date Jan 27, 1998
- Unisys Corporation
- Anthony J. Brinkman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE