Eraser for use with optical interactive surface

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United States of America Patent

PATENT NO 8890842
SERIAL NO

12174398

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Abstract

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An eraser is usable in a display system having a display surface. The eraser includes one or more optical detection elements for determining the coordinates of the eraser relative to the display surface.

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Patent Owner(s)

Patent OwnerAddress
STEELCASE INC901 44TH STREET S E P O BOX 1967 GRAND RAPIDS MI 49501

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hildebrandt, Peter W Duluth, US 42 1061
Watson, James D Duluth, US 49 810
Wilson, Scott E Kailua-Kona, US 20 359

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