Johannes H. M. Van Der Sande

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
High-pressure sodium discharge lamp having a color temperature of a...
- Patent number 5,097,176
- Issue date Mar 17, 1992
- U.S. Philips Corporation
- Johannes T. W. De Hair
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High-pressure sodium discharge lamp with fins radially extending fr...
- Patent number 4,970,431
- Issue date Nov 13, 1990
- U.S. Philips Corporation
- Klaas Vegter
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High-pressure discharge lamp with envelope lead-through structure
- Patent number 4,409,517
- Issue date Oct 11, 1983
- U.S. Philips Corporation
- Johannes H. M. Van Der Sande
- H01 - BASIC ELECTRIC ELEMENTS