Wen Liu

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Nepean, CA

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for monitoring performance of optical network
- Patent number 7,184,660
- Issue date Feb 27, 2007
- Tropic Networks Inc.
- Wen Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for monitoring performance of optical network
- Patent number 7,031,606
- Issue date Apr 18, 2006
- Tropic Networks Inc.
- Wen Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Add/drop multiplexing in WDM optical networks
- Patent number 6,829,438
- Issue date Dec 7, 2004
- Tropic Networks Inc.
- Wen Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Flexible optical network architecture and optical add/drop multiple...
- Patent number 6,594,045
- Issue date Jul 15, 2003
- Tropic Networks, Inc.
- Wen Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Flexible optical network architecture
- Patent number 6,559,987
- Issue date May 6, 2003
- Tropic Networks Inc.
- Wen Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Surface wave devices with static electric field
- Patent number 6,380,828
- Issue date Apr 30, 2002
- Nortel Networks Limited
- Wen Liu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Surface wave devices with tapered transducers
- Patent number 6,023,122
- Issue date Feb 8, 2000
- Nortel Networks Corporation
- Wen Liu
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Method and system for monitoring performance of optical network
- Publication number 20030103252
- Publication date Jun 5, 2003
- Wen Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system for monitoring performance of optical network
- Publication number 20030099010
- Publication date May 29, 2003
- Wen Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Add/drop multiplexing in WDM optical networks
- Publication number 20030007209
- Publication date Jan 9, 2003
- AR card
- Wen Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Flexible optical network architecture and optical add/drop multiple...
- Publication number 20020197007
- Publication date Dec 26, 2002
- Wen Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Flexible optical network architecture
- Publication number 20020197006
- Publication date Dec 26, 2002
- Wen Liu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE