Inventor · disambiguated record
Hans Gref
Also filed as: GREF HANS · GREF HANS-JORG
9 granted patents·76 citations·filing 1972–2001
87Inventor score
Top patents by PatentIndex Score
9 records- 0184US4241023AApparatus for the continuous preparation of photographic emulsionsAGFA GEVAERT AG·Filed 1978·Granted Dec 23, 1980·16 cites·7 claims
- 0262US4334884AProcess for the continuous preparation of photographic emulsionsAGFA GEVAERT AG·Filed 1980·Granted Jun 15, 1982·16 cites·3 claims
- 0354USD466685SMetal casing and umbrellaJOSEF GREF GMBH & CO·Filed 2001·Granted Dec 10, 2002·11 cites·1 claims
- 0444US4221184ACasting block of stable shapeAGFA GEVAERT AG·Filed 1978·Granted Sep 9, 1980·10 cites·7 claims
- 0544US4014491AArrangement for adjusting and measuring web tension levelsAGFA GEVAERT AG·Filed 1974·Granted Mar 29, 1977·7 cites·5 claims
- 0643US4095063ADetection device for paper or film in web formAGFA GEVAERT AG·Filed 1976·Granted Jun 13, 1978·9 cites·5 claims
- 0731US4344552AIndependent drive for a roller cavity suction apparatusAGFA GEVAERT AG·Filed 1980·Granted Aug 17, 1982·2 cites·3 claims
- 0827US4276853AExperimental plant for the coating and drying of material in the form of websAGFA GEVAERT AG·Filed 1979·Granted Jul 7, 1981·3 cites·11 claims
- 0927US3983839AMultiple coating apparatusAGFA GEVAERT AG·Filed 1972·Granted Oct 5, 1976·2 cites·30 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →