Marc de Groot

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San Francisco, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for creating sounds in a virtual world by simu...
- Patent number 5,587,936
- Issue date Dec 24, 1996
- VPL Research, Inc.
- David A. Levitt
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Sourceless orientation sensor
- Patent number 5,526,022
- Issue date Jun 11, 1996
- Virtual I/O, Inc.
- Michael J. Donahue
- G06 - COMPUTING CALCULATING COUNTING