Dirk Hubner

Follow

Person

Cologne, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Color photographic recording material
- Patent number 6,228,568
- Issue date May 8, 2001
- Agfa-Gevaert
- Thomas Stetzer
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color photographic recording material containing a coupler which re...
- Patent number 5,200,306
- Issue date Apr 6, 1993
- Agfa-Gevaert Aktiengesellschaft
- Heinrich Odenwalder
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Color photographic recording material containing a dir-coupler
- Patent number 4,897,341
- Issue date Jan 30, 1990
- Agfa-Gevaert Aktiengesellschaft
- Heinrich Odenwalder
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Color photograhic recording material containing a coupler which rel...
- Patent number 4,870,000
- Issue date Sep 26, 1989
- Agfa-Gevaert Aktiengesellschaft
- Peter Bergthaller
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Color photographic recording material containing a yellow DIR coupler
- Patent number 4,840,880
- Issue date Jun 20, 1989
- Agfa-Gevaert Aktiengesellschaft
- Hans Ohlschlager
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Color photographic recording material containing a yellow DIR coupler
- Patent number 4,833,070
- Issue date May 23, 1989
- Agfa-Gevaert Aktiengesellschaft
- Friedrich-Wilhelm Kunitz
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY