Harold Sit

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Gloucester, CA

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Patents Grantslast 30 patents

Information Patent Grant
Network implemented communication system
- Patent number 7,203,189
- Issue date Apr 10, 2007
- Mitel Networks Corporation
- Debbie Pinard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Private branch exchange implemented using H.323 gatekeeper
- Patent number 6,819,665
- Issue date Nov 16, 2004
- Mitel Knowledge Corporation
- Debbie Pinard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Local area communications server
- Patent number 5,657,446
- Issue date Aug 12, 1997
- Mitel Corporation
- Deborah L. Pinard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Private branch exchange
- Publication number 20030007460
- Publication date Jan 9, 2003
- Debbie Pinard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE