Deirdre T. H. Ryan

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Westfield, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Bidirectional video telephony between cable television and switched...
- Patent number 5,329,308
- Issue date Jul 12, 1994
- AT&T Bell Laboratories
- Walter P. Binns
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Arrangement for serving a telephone office code from two switching...
- Patent number 5,237,604
- Issue date Aug 17, 1993
- AT&T Bell Laboratories
- Deirdre T. H. Ryan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE