Arnfried Melzer

Follow

Person

Cologne, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Dye diffusion transfer process employing compounds that release sul...
- Patent number 4,198,235
- Issue date Apr 15, 1980
- AGFA-Gevaert, A.G.
- Hans Vetter
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic color developer composition
- Patent number 4,155,764
- Issue date May 22, 1979
- AGFA-Gevaert, A.G.
- Arnfried Melzer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic color developer composition
- Patent number 4,142,895
- Issue date Mar 6, 1979
- Agfa-Gevaert Aktiengesellschaft
- Karl Frank
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sulfonamido dye releaser in photographic dye diffusion transfer
- Patent number 4,110,113
- Issue date Aug 29, 1978
- Agfa-Gevaert Aktiengesellschaft
- Arnfried Melzer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY