Assignee
WOLFEN FILMFAB VEB
12 granted patents·76 citations·filing 1974–1982
Top patents by PatentIndex Score
12 records- 0163US4387159ALight sensitive, color photographic silver halide compositions with DIR-couplersWOLFEN FILMFAB VEB·Filed 1981·Granted Jun 7, 1983·8 cites·10 claims
- 0263US4312941APhotographic materials with antihalation means based upon silver halide emulsionsWOLFEN FILMFAB VEB·Filed 1980·Granted Jan 26, 1982·22 cites·12 claims
- 0360US4286054ALight sensitive, color photographic silver halide compositions with DIR-couplersWOLFEN FILMFAB VEB·Filed 1980·Granted Aug 25, 1981·11 cites·15 claims
- 0456US4419440AProcess for the introduction of hydrophobic photographic additivesWOLFEN FILMFAB VEB·Filed 1981·Granted Dec 6, 1983·10 cites·17 claims
- 0555US3998688AMethod for the production of cellulose fibers using a two-step pre-treatmentWOLFEN FILMFAB VEB·Filed 1974·Granted Dec 21, 1976·9 cites·17 claims
- 0653US4400458ADiazonium salts and a diazo-type material comprising these diazonium saltsWOLFEN FILMFAB VEB·Filed 1981·Granted Aug 23, 1983·7 cites·22 claims
- 0738US4410624AMethod of dispersing oil soluble photographic additivesWOLFEN FILMFAB VEB·Filed 1982·Granted Oct 18, 1983·3 cites·24 claims
- 0832US4419431AOne- or two-component diazo-type material with diphenyl diamine as light fade inhibitorWOLFEN FILMFAB VEB·Filed 1981·Granted Dec 6, 1983·2 cites·15 claims
- 0923US4360587ASilver-free light-sensitive materialWOLFEN FILMFAB VEB·Filed 1981·Granted Nov 23, 1982·1 cites·31 claims
- 1022US4120726ASilver-halide emulsion sensitized with an asymmetrical disulfideWOLFEN FILMFAB VEB·Filed 1977·Granted Oct 17, 1978·1 cites·20 claims
- 1122US4030928AProcess of sensitizing silver halide emulsion with a dithioesterWOLFEN FILMFAB VEB·Filed 1975·Granted Jun 21, 1977·1 cites·5 claims
- 1221US4131470AProcess for the stabilization and antifogging of photographic silver halide emulsionsWOLFEN FILMFAB VEB·Filed 1976·Granted Dec 26, 1978·1 cites·7 claims
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