Assignee
MICROFIELD GRAPHICS INC
US·6 granted patents·518 citations·filing 1987–1994
Top patents by PatentIndex Score
6 records- 0191US4777329AGraphic input systemMICROFIELD GRAPHICS INC·Filed 1987·Granted Oct 11, 1988·156 cites·20 claims
- 0287US5248856ACode-based, electromagnetic-field-responsive graphic data-acquisition systemMICROFIELD GRAPHICS INC·Filed 1992·Granted Sep 28, 1993·150 cites·28 claims
- 0384US5434370AMarking system with pen-up/pen-down trackingMICROFIELD GRAPHICS INC·Filed 1993·Granted Jul 18, 1995·106 cites·13 claims
- 0470US5623129ACode-based, electromagnetic-field-responsive graphic data-acquisition systemMICROFIELD GRAPHICS INC·Filed 1994·Granted Apr 22, 1997·50 cites·11 claims
- 0567US5585605AOptical-scanning system employing laser and laser safety controlMICROFIELD GRAPHICS INC·Filed 1993·Granted Dec 17, 1996·28 cites·5 claims
- 0654US5583323ACalibration of graphic data-acquisition tracking systemMICROFIELD GRAPHICS INC·Filed 1993·Granted Dec 10, 1996·28 cites·18 claims
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