Mark R. Dreher

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Boulder, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for internet telephony
- Patent number 6,529,501
- Issue date Mar 4, 2003
- 3COM Corporation
- John H. Zhao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Low-profile speakerphone with downward oriented microphone configur...
- Patent number 6,016,346
- Issue date Jan 18, 2000
- 3COM Corporation
- Stephen P. Rittmueller
- H04 - ELECTRIC COMMUNICATION TECHNIQUE