Leo Liu

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Palo Alto, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Computer telephony power supply method and apparatus
- Patent number 7,013,007
- Issue date Mar 14, 2006
- Altigen Communications, Inc.
- Simon Chouldjian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Mixed-media communication apparatus and method
- Patent number 6,532,230
- Issue date Mar 11, 2003
- Altigen Communications, Inc.
- En-Kuang Lung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Analog caller identification transmission method and apparatus
- Patent number 6,493,439
- Issue date Dec 10, 2002
- Altigen Communications, Inc.
- En-Kuang Lung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Analog caller identification transmission method and apparatus
- Patent number 6,292,549
- Issue date Sep 18, 2001
- Altigen Communications, Inc.
- En-Kuang Lung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Analog caller identification transmission method and apparatus
- Publication number 20020064264
- Publication date May 30, 2002
- AltiGen Communications, Inc.
- En-Kuang Lung
- H04 - ELECTRIC COMMUNICATION TECHNIQUE