Inventor · disambiguated record
Ingo Hoffrichter
Also filed as: HOFFRICHTER INGO
7 granted patents·152 citations·filing 1976–1984
86Inventor score
Top patents by PatentIndex Score
7 records- 0191US4623973AMethod and apparatus for the recognition of hues and colorsHELL RUDOLF DR ING GMBH·Filed 1984·Granted Nov 18, 1986·67 cites·23 claims
- 0276US4136360AApparatus including a circuit arrangement for adjusting the color signal levels of a white dotHELL RUDOLF DR ING GMBH·Filed 1976·Granted Jan 23, 1979·23 cites·5 claims
- 0373US4649423AMethod and circuit arrangement for selective correction of hues and colorsHELL RUDOLF DR ING GMBH·Filed 1984·Granted Mar 10, 1987·23 cites·17 claims
- 0463US4096519ACircuit arrangement for resetting the signal level of a darkest area of a color or monochrome image reproduction apparatusHELL RUDOLF DR ING GMBH·Filed 1976·Granted Jun 20, 1978·14 cites·8 claims
- 0551US4631579AMethod and apparatus for the production of color separations for single color printingHELL RUDOLF DR ING GMBH·Filed 1984·Granted Dec 23, 1986·11 cites·31 claims
- 0648US4403249AApparatus for mixing image signals to obtain a printing masterHELL RUDOLF DR ING GMBH·Filed 1980·Granted Sep 6, 1983·9 cites·20 claims
- 0740US4255761AApparatus for mixing image signals to obtain a printing masterHELL RUDOLF GMBH·Filed 1978·Granted Mar 10, 1981·5 cites·5 claims
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