Assignee

DUNTHORN DAVID I

2 granted patents·1,125 citations·filing 1988–1992

Technology mixG06F2 G01V1

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2 records

0195US4914624AVirtual button for touch screenDUNTHORN DAVID I·Filed 1988·Granted Apr 3, 1990·673 cites·22 claims
0294US5317140ADiffusion-assisted position location particularly for visual pen detectionDUNTHORN DAVID I·Filed 1992·Granted May 31, 1994·452 cites·40 claims

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