Gijsbert Johannes Ponsen

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Discharge lamp operating circuit
- Patent number 4,074,172
- Issue date Feb 14, 1978
- U.S. Philips Corporation
- Gustaaf A. Wesselink
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Gaseous electric discharge tube having a coaxial, hollow cathode st...
- Patent number 3,934,167
- Issue date Jan 20, 1976
- U.S. Philips Corporation
- Gijsbert Johannes Ponsen
- H01 - BASIC ELECTRIC ELEMENTS