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US5220136A
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Contact touchscreen with an improved insulated spacer arrangement
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Touch sensitive screen with improved corner response
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Touch sensor with touch pressure capability
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Electrographic touch sensor having reduced bow of equipotential field lines therein
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US4777328A
|
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Circular electrographic touch sensor with orthogonal fields and linear response
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US4797514A
|
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Touch sensitive device with increased linearity
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US4659873A
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Fabric touch sensor and method of manufacture
|
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Electrographic touch sensor with Z-axis capability
|
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US4661655A
|
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Electrographic touch sensor and method of reducing bowed equipotential fields therein
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US4220815A
|
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Nonplanar transparent electrographic sensor
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US4071689A
|
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Lucent electrographic sensor for determining planar coordinates
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US3911215A
|
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Discriminating contact sensor
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US3798370A
|
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Electrographic sensor for determining planar coordinates
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