Gerhard H. F. de Vries

Person

Eindhoven, NL

People

Patents Grantslast 30 patents

Information Patent Grant
Gas discharge display device having anodized and unanodized electro...
- Patent number 4,494,037
- Issue date Jan 15, 1985
- U.S. Philips Corporation
- Gerhard H. F. de Vries
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Picture display device having a gas discharge display panel
- Patent number 4,390,808
- Issue date Jun 28, 1983
- U.S. Philips Corporation
- Gerhard H. F. De Vries
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing an electric discharge device comprising a g...
- Patent number 4,389,276
- Issue date Jun 21, 1983
- U.S. Philips Corporation
- Gerhard H. F. deVries
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing an electric discharge device
- Patent number 4,389,277
- Issue date Jun 21, 1983
- U.S. Philips Corporation
- Gerhard H. F. deVries
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gas discharge display panel having hollow cathodes
- Patent number 4,388,550
- Issue date Jun 14, 1983
- U.S. Philips Corporation
- Gerhard H. F. de Vries
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Display device having a matrix of gas discharge display elements
- Patent number 4,171,524
- Issue date Oct 16, 1979
- U.S. Philips Corporation
- Jean H. J. Lorteije
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Gas discharge display device having plural groups of cathodes
- Patent number 4,027,186
- Issue date May 31, 1977
- U.S. Philips Corporation
- Gerhard Heinrich Friedrich de Vries
- H01 - BASIC ELECTRIC ELEMENTS

Gerhard H. F. de Vries

Person

Patents Grantslast 30 patents

Gas discharge display device having anodized and unanodized electro...

Picture display device having a gas discharge display panel

Method of manufacturing an electric discharge device comprising a g...

Method of manufacturing an electric discharge device

Gas discharge display panel having hollow cathodes

Display device having a matrix of gas discharge display elements

Gas discharge display device having plural groups of cathodes