Inventor · disambiguated record
Robert Hehlen
Also filed as: HEHLEN ROBERT
7 granted patents·213 citations·filing 1977–1988
87Inventor score
Top patents by PatentIndex Score
7 records- 0185US5055833AMethod for the control of an electro-optical matrix screen and control circuitTHOMSON GRAND PUBLIC·Filed 1988·Granted Oct 8, 1991·77 cites·6 claims
- 0285US4481510AElectrooptical switching deviceTHOMSON CSF·Filed 1981·Granted Nov 6, 1984·61 cites·9 claims
- 0363US4621261ASystem for making a thermo-active device temperature dependentTHOMSON CSF·Filed 1983·Granted Nov 4, 1986·24 cites·10 claims
- 0463US4173757ALiquid crystal display deviceTHOMSON CSF·Filed 1977·Granted Nov 6, 1979·17 cites·10 claims
- 0555US4525708AThermoelectric effect display deviceTHOMSON CSF·Filed 1982·Granted Jun 25, 1985·17 cites·4 claims
- 0643US4427997AControl device for a display screen and display screen controlled by this deviceTHOMSON CSF·Filed 1981·Granted Jan 24, 1984·9 cites·6 claims
- 0742US4673256AProcess for controlling a matrix access display deviceTHOMSON CSF·Filed 1984·Granted Jun 16, 1987·8 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →