Piet Kok

Person

Ghent, BE

People

Patents Grantslast 30 patents

Information Patent Grant
Type of modified gelatin and its use in a DTR material
- Patent number 5,536,817
- Issue date Jul 16, 1996
- Agfa-Gevaert, N.V.
- Eddy Michiels
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Type of modified gelatin and its use in a DTR material
- Patent number 5,474,885
- Issue date Dec 12, 1995
- Agfa-Gevaert, N.V.
- Eddy Michiels
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Modified gelatin types and hydrophilic elements containing them
- Patent number 5,439,791
- Issue date Aug 8, 1995
- Agfa-Gevaert, N.V.
- Piet Kok
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Photographic direct positive material containing a masked benzotria...
- Patent number 5,254,443
- Issue date Oct 19, 1993
- Agfa-Gevaert, N.V.
- Piet Kok
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Class of masked stabilizers in photographic materials or developing...
- Patent number 5,236,815
- Issue date Aug 17, 1993
- Agfa-Gevaert, N.V.
- Jean-Marie O. Dewanckele
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
High contrast developer containing an aprotic solvent
- Patent number 5,206,123
- Issue date Apr 27, 1993
- Agfa-Gevaert, N.V.
- Richard A. Ooms
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photographic stabilizers with 1-phenyl-3-pyrazolidinone moieties
- Patent number 5,156,940
- Issue date Oct 20, 1992
- Agfa-Gevaert, N.V.
- Piet Kok
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method of developing direct positive silver halide material
- Patent number 5,155,014
- Issue date Oct 13, 1992
- Agfa-Gevaert, N.V.
- Jozef P. De Prijcker
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer liquid for high contrast development
- Patent number 5,141,843
- Issue date Aug 25, 1992
- AGFA-GEVAERT N.V.
- Richard A. Ooms
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Quick acting hardener for photographic gelatin layers
- Patent number 5,073,480
- Issue date Dec 17, 1991
- Agfa-Gevaert, N.V.
- Piet Kok
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for the production of a laminated article
- Patent number 5,043,245
- Issue date Aug 27, 1991
- Agfa-Gevaert, N.V.
- Leon L. Vermeulen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Particulate toner material with charge control agent
- Patent number 5,013,628
- Issue date May 7, 1991
- Agfa-Gevaert, N.V.
- Piet Kok
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Particulate electrophotographic toner material
- Patent number 4,988,600
- Issue date Jan 29, 1991
- Agfa-Gevaert, N.V.
- Piet Kok
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image-receiving material for use in diffusion transfer reversal
- Patent number 4,908,286
- Issue date Mar 13, 1990
- Agfa-Gevaert, N.V.
- Ludovicus H. Vervloet
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Dye image receiving material
- Patent number 4,902,593
- Issue date Feb 20, 1990
- Agfa-Gevaert, N.V.
- Leon L. Vermeulen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dye diffusion transfer imaging process and image receptor used therein
- Patent number 4,820,608
- Issue date Apr 11, 1989
- Agfa-Gevaert, N.V.
- Daniel A. Claeys
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image-receiving material with siloxane, colloidal silica and gelati...
- Patent number 4,762,759
- Issue date Aug 9, 1988
- AGFA-GEVAERT N.V.
- Leon L. Vermeulen
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Yellow dye-releasing azo compounds for use in the production of dif...
- Patent number 4,748,108
- Issue date May 31, 1988
- Agfa-Gevaert, N.V.
- Christian C. Van de Sande
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Substituted triazolopyrimidines and their use in light-sensitive ph...
- Patent number 4,727,017
- Issue date Feb 23, 1988
- Agfa-Gevaert, N.V.
- Robert J. Pollet
- C07 - ORGANIC CHEMISTRY

Person

Patents Grantslast 30 patents

Type of modified gelatin and its use in a DTR material

Type of modified gelatin and its use in a DTR material

Modified gelatin types and hydrophilic elements containing them

Photographic direct positive material containing a masked benzotria...

Class of masked stabilizers in photographic materials or developing...

High contrast developer containing an aprotic solvent

Photographic stabilizers with 1-phenyl-3-pyrazolidinone moieties

Method of developing direct positive silver halide material

Developer liquid for high contrast development

Quick acting hardener for photographic gelatin layers

Process for the production of a laminated article

Particulate toner material with charge control agent

Particulate electrophotographic toner material

Image-receiving material for use in diffusion transfer reversal

Dye image receiving material

Dye diffusion transfer imaging process and image receptor used therein

Image-receiving material with siloxane, colloidal silica and gelati...

Yellow dye-releasing azo compounds for use in the production of dif...

Substituted triazolopyrimidines and their use in light-sensitive ph...