Inventor · disambiguated record
Henry G. Matthews
Also filed as: MATTHEWS HENRY G
4 granted patents·185 citations·filing 1982–1987
81Inventor score
Technology areasG06F
Files withSUMMAGRAPHICS CORP4
Top patents by PatentIndex Score
4 records- 0180US4794388AMethod of and apparatus for controlling a displaySUMMAGRAPHICS CORP·Filed 1982·Granted Dec 27, 1988·62 cites·36 claims
- 0277US4786764ADigitizer stylus with pressure transducerSUMMAGRAPHICS CORP·Filed 1987·Granted Nov 22, 1988·65 cites·20 claims
- 0363US4831566AMethod and apparatus for calibration of a charge ratio digitizerSUMMAGRAPHICS CORP·Filed 1987·Granted May 16, 1989·36 cites·24 claims
- 0451US4788386AMenu for a charge ratio digitizerSUMMAGRAPHICS CORP·Filed 1987·Granted Nov 29, 1988·22 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →