Joel M. Marks

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Naperville, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Switch control methods and apparatus
- Patent number 5,640,319
- Issue date Jun 17, 1997
- Lucent Technologies Inc.
- Brian George Beuning
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Arrangement for intentionally blocking telephone calls to predefine...
- Patent number 5,109,408
- Issue date Apr 28, 1992
- AT&T Bell Laboratories
- Steven L. Greenspan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE