Daniel Joseph Farfan

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Phoenix, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Information on hold telephony service
- Patent number 5,946,378
- Issue date Aug 31, 1999
- AG Communication Systems Corporation
- Daniel Joseph Farfan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Telephone call on hold service for a party placed on hold by anothe...
- Patent number 5,875,231
- Issue date Feb 23, 1999
- AG Communication Systems Corporation
- Daniel Joseph Farfan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Games on hold telephony service
- Patent number 5,828,735
- Issue date Oct 27, 1998
- AG Communication Systems Corporation
- Daniel Joseph Farfan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE