Inventor · disambiguated record
Ernst E. Schumacher
Also filed as: SCHUMACHER ERNST · SCHUMACHER ERNST E
4 granted patents·43 citations·filing 1973–1976
75Inventor score
Top patents by PatentIndex Score
4 records- 0166US3934081AMethod and apparatus for improving photomechanical reproduction by contrast decreaseSCHUMACHER ERNST E·Filed 1974·Granted Jan 20, 1976·18 cites·7 claims
- 0256US3951668AMulticolor printingSCHMIDT GEBR DRUCKFARBEN·Filed 1973·Granted Apr 20, 1976·18 cites·4 claims
- 0333US4062688ASet of basic printing inks for producing color tones by printing methodsSCHUMACHER ERNST E·Filed 1976·Granted Dec 13, 1977·5 cites·6 claims
- 0430US3977875AMethod for modifying vesicular imagesCIBA GEIGY AG·Filed 1974·Granted Aug 31, 1976·2 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →