Assignee
ELOGRAPHICS INC
US12 patents
Top patents by PatentIndex Score
US5220136AJun 15, 1993
Contact touchscreen with an improved insulated spacer arrangement
ELOGRAPHICS INC122 citations98
US4659873AApr 21, 1987
Fabric touch sensor and method of manufacture
ELOGRAPHICS INC197 citations98
US4822957AApr 18, 1989
Electrographic touch sensor having reduced bow of equipotential field lines therein
ELOGRAPHICS INC164 citations95
US4797514AJan 10, 1989
Touch sensitive device with increased linearity
ELOGRAPHICS INC74 citations95
US4687885AAug 18, 1987
Electrographic touch sensor with Z-axis capability
ELOGRAPHICS INC116 citations95
US4661655AApr 28, 1987
Electrographic touch sensor and method of reducing bowed equipotential fields therein
ELOGRAPHICS INC62 citations95
US4731508AMar 15, 1988
Electrographic tough sensor having reduced bow of equipotential field line therein
ELOGRAPHICS INC65 citations94
US4220815ASep 2, 1980
Nonplanar transparent electrographic sensor
ELOGRAPHICS INC299 citations94
US5045644ASep 3, 1991
Touch sensitive screen with improved corner response
ELOGRAPHICS INC77 citations93
US4933660AJun 12, 1990
Touch sensor with touch pressure capability
ELOGRAPHICS INC215 citations93
US4071689AJan 31, 1978
Lucent electrographic sensor for determining planar coordinates
ELOGRAPHICS INC193 citations93
US4777328AOct 11, 1988
Circular electrographic touch sensor with orthogonal fields and linear response
ELOGRAPHICS INC31 citations90