Inventor · disambiguated record
Siegfried Barbieri
Also filed as: BARBIERI SIEGFRIED
7 granted patents·35 citations·filing 1974–1978
81Inventor score
Files withDURST AG7
Top patents by PatentIndex Score
7 records- 0178US4050807AProcess and device for copying photographic color imagesDURST AG·Filed 1976·Granted Sep 27, 1977·12 cites·12 claims
- 0276US4030833AColor filter determining apparatusDURST AG·Filed 1975·Granted Jun 21, 1977·11 cites·14 claims
- 0353US4189227AIlluminating system for photographic color enlargement or copyingDURST AG·Filed 1978·Granted Feb 19, 1980·4 cites·8 claims
- 0447US4188125AApparatus for the determination of the color composition of the printing light in a photographic enlargerDURST AG·Filed 1977·Granted Feb 12, 1980·4 cites·12 claims
- 0542US3985450AColor filter determining apparatus with indication of the color components to be balancedDURST AG·Filed 1975·Granted Oct 12, 1976·2 cites·10 claims
- 0632US3984676ALight-measuring apparatus with lamp indicator for determining balance of a measuring bridgeDURST AG·Filed 1974·Granted Oct 5, 1976·2 cites·5 claims
- 0728US4165175AApparatus for sampling printing light in a photographic enlarger for determining its color compositionDURST AG·Filed 1977·Granted Aug 21, 1979·0 cites·24 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →