Inventor · disambiguated record
Matthias Schellenberg
Also filed as: SCHELLENBERG MATTHIAS
9 granted patents·34 citations·filing 1974–1987
85Inventor score
Files withCIBA GEIGY AG9
Top patents by PatentIndex Score
9 records- 0164US4138256AMethod of processing photographic silver dye bleach materialsCIBA GEIGY AG·Filed 1976·Granted Feb 6, 1979·7 cites·14 claims
- 0260US4186008AMethod for processing silver dye-bleach materialsCIBA GEIGY AG·Filed 1978·Granted Jan 29, 1980·7 cites·21 claims
- 0353US3963492AMethod for processing silver dye bleach materialsCIBA GEIGY AG·Filed 1974·Granted Jun 15, 1976·9 cites·10 claims
- 0447US4357280AUse of tertiary phosphines in photographic silver dye bleach materialsCIBA GEIGY AG·Filed 1981·Granted Nov 2, 1982·2 cites·1 claims
- 0538US4271254AProcess for producing photographic imagesCIBA GEIGY AG·Filed 1979·Granted Jun 2, 1981·3 cites·42 claims
- 0633US4014699APreparation for the processing of photographic materialsCIBA GEIGY AG·Filed 1975·Granted Mar 29, 1977·1 cites·5 claims
- 0733US3961958AProcess for fixing photographic materialCIBA GEIGY AG·Filed 1974·Granted Jun 8, 1976·2 cites·6 claims
- 0833US3957516APreparation for the processing of photographic materialsCIBA GEIGY AG·Filed 1974·Granted May 18, 1976·2 cites·2 claims
- 0932US4803151APhotographic material for the silver dye bleach process comprising an AZO dye, capable of laking, in gelatineCIBA GEIGY AG·Filed 1987·Granted Feb 7, 1989·1 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →