Dieter Wilhelm

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Eschweiler, DE

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Patents Grantslast 30 patents

Information Patent Grant
Electric lamp
- Patent number 5,479,066
- Issue date Dec 26, 1995
- U.S. Philips Corporation
- Johannes J. G. S. A. Willems
- F21 - LIGHTING
Information Patent Grant
Electric lamp having a pinch supported in a sleeve-shared cap
- Patent number 4,849,670
- Issue date Jul 18, 1989
- U.S. Philips Corporation
- Paul Hellwig
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electric lamp having a light source aligned to a cap
- Patent number 4,567,397
- Issue date Jan 28, 1986
- U.S. Philips Corporation
- Dieter Wilhelm
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Lamp/reflector unit
- Patent number 4,538,090
- Issue date Aug 27, 1985
- U.S. Philips Corporation
- Dieter Wilhelm
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Lamp/reflector unit
- Patent number 4,292,564
- Issue date Sep 29, 1981
- U.S. Philips Corporation
- Volker Kuhnert
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Lamp/reflector unit
- Patent number 4,264,840
- Issue date Apr 28, 1981
- U.S. Philips Corporation
- Volker Kuhnert
- H01 - BASIC ELECTRIC ELEMENTS