Inventor · disambiguated record
Frederick Charles Derks
Also filed as: DERKS FREDERICK C · DERKS FREDERICK CHARLES
6 granted patents·20 citations·filing 1993–1997
77Inventor score
Technology areasG03C
Files withEASTMAN KODAK CO6
Top patents by PatentIndex Score
6 records- 0165US5849470AMixed grain emulsions of the same grains having different speed properties for photographic elementsEASTMAN KODAK CO·Filed 1997·Granted Dec 15, 1998·5 cites·8 claims
- 0264US5840473AMixed emulsions of different speed properties using sulfinate and sulfonate compoundsEASTMAN KODAK CO·Filed 1997·Granted Nov 24, 1998·5 cites·11 claims
- 0359US6159676AChemical sensitization of large tabular grain emulsionsEASTMAN KODAK CO·Filed 1997·Granted Dec 12, 2000·4 cites·28 claims
- 0458US5723280APhotographic element comprising a red sensitive silver halide emulsion layerEASTMAN KODAK CO·Filed 1996·Granted Mar 3, 1998·4 cites·14 claims
- 0545US5965345ACo-dispersion of sensitizing dyesEASTMAN KODAK CO·Filed 1995·Granted Oct 12, 1999·2 cites·11 claims
- 0629US6291154B1Green sensitized tabular grain photographic emulsionsEASTMAN KODAK CO·Filed 1993·Granted Sep 18, 2001·0 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →