Assignee
HELL RUDOLF GMBH
DE·6 granted patents·147 citations·filing 1974–1988
Top patents by PatentIndex Score
6 records- 0191US4499489AProduction of screen printing blocksHELL RUDOLF GMBH·Filed 1983·Granted Feb 12, 1985·89 cites·50 claims
- 0260US4902156AMounting device for image cylindersHELL RUDOLF GMBH·Filed 1988·Granted Feb 20, 1990·19 cites·7 claims
- 0359US4486772AMethod and circuit arrangement for partial correction of the delineation in color image reproductionHELL RUDOLF GMBH·Filed 1980·Granted Dec 4, 1984·14 cites·14 claims
- 0451US4719474AApparatus for imaging text and graphics on photosensitive materialHELL RUDOLF GMBH·Filed 1985·Granted Jan 12, 1988·18 cites·17 claims
- 0540US4255761AApparatus for mixing image signals to obtain a printing masterHELL RUDOLF GMBH·Filed 1978·Granted Mar 10, 1981·5 cites·5 claims
- 0634US3935584ADevice for handling photographic film between a cassette and an exposure reproduction apparatusHELL RUDOLF GMBH·Filed 1974·Granted Jan 27, 1976·2 cites·22 claims
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