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Inventor

Marc de Groot

Inventor
San Francisco, CA, US

Overview

2→
Patents
1996–2002
Patent span
Physics
Primary field (CPC G)

Patents· 2 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A63Fprimary
A63FCard, board, or roulette games33%
G01CMeasuring distances, levels or bearings33%
G06FElectric digital data processing33%
PatentTitleYear
6,421,047'Multi-user virtual reality system for simulating a three-dimensional environment'20025,526,022'Sourceless orientation sensor'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996Patents assigned to VIRTUAL I O INC (1)· patent assignee history
1996–2002Based in San Francisco, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
VIRTUAL I O INC11996
Locations
LocationPatentsSpan
San Francisco, California, US21996–2002