Roberto Irribarren

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Fremont, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Distributed messaging system
- Patent number 5,841,966
- Issue date Nov 24, 1998
- Centigram Communications Corporation
- Roberto Irribarren
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for integrating voice, facsimile and electronic m...
- Patent number 5,737,395
- Issue date Apr 7, 1998
- Centigram Communications Corporation
- Roberto Irribarren
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for integrating voice, facsimile and electronic m...
- Patent number 5,530,740
- Issue date Jun 25, 1996
- Contigram Communications Corporation
- Roberto Irribarren
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Interface system and method for interconnecting a voice message sys...
- Patent number 5,349,636
- Issue date Sep 20, 1994
- Centigram Communications Corporation
- Roberto Irribarren
- H04 - ELECTRIC COMMUNICATION TECHNIQUE