Ekkehard Kramp

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Patents Grantslast 30 patents

Information Patent Grant
Layers for photographic materials
- Patent number 4,898,810
- Issue date Feb 6, 1990
- Ciba-Geigy AG
- Ute Eggert
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for the prevention of darkening and the formation of a sedi...
- Patent number 4,254,215
- Issue date Mar 3, 1981
- Ciba-Geigy AG
- Ekkehard Kramp
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dye bleach preparation for the photographic silver dye bleach process
- Patent number 3,961,957
- Issue date Jun 8, 1976
- Ciba-Geigy AG
- Ekkehard Kramp
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY