Philip W. Hartmann

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Boulder, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Virtual local area network
- Patent number 4,823,338
- Issue date Apr 18, 1989
- American Telephone and Telegraph Company
- Kenneth K. Chan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time slot assignment facilities
- Patent number 4,510,596
- Issue date Apr 9, 1985
- AT&T Bell Labs
- Philip W. Hartmann
- H04 - ELECTRIC COMMUNICATION TECHNIQUE