Inventor · disambiguated record
John W. Frech
Also filed as: FRECH JOHN W
4 granted patents·219 citations·filing 1980–1993
81Inventor score
Top patents by PatentIndex Score
4 records- 0186US4430642ADigital-to-analog converterWESTINGHOUSE ELECTRIC CORP·Filed 1981·Granted Feb 7, 1984·39 cites·3 claims
- 0283US5491468AIdentification system and method with passive tagWESTINGHOUSE ELECTRIC CORP·Filed 1993·Granted Feb 13, 1996·124 cites·17 claims
- 0381US4342983ADynamically calibrated successive ranging A/D conversion system and D/A converter for use thereinWESTINGHOUSE ELECTRIC CORP·Filed 1980·Granted Aug 3, 1982·32 cites·15 claims
- 0467US4352160AStatistical method of measuring the differential linearity of an analog/digital converter using a pseudo-random triangle wave stimulusUS AIR FORCE·Filed 1980·Granted Sep 28, 1982·24 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →