Wolfgang Doetter

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Aachen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Electric lamp
- Patent number 6,639,342
- Issue date Oct 28, 2003
- Koninklijke Philips Electronics N.V.
- Erik Paul Boonekamp
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Electric lamp having optical interference filter of alternating lay...
- Patent number 6,049,169
- Issue date Apr 11, 2000
- Philips Electronics North America Corp.
- Ray G. Gibson
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Electric lamp with an optical interference film
- Publication number 20070040509
- Publication date Feb 22, 2007
- Koninklijke Philips Electronics N.V.
- Rob Van Wijk
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electric lamp and method of depositing a layer on the lamp
- Publication number 20060273725
- Publication date Dec 7, 2006
- Koninklijke Philips Electronics N.V.
- Georg Henninger
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electric lamp
- Publication number 20020030426
- Publication date Mar 14, 2002
- Erik Paul Boonekamp
- C03 - GLASS MINERAL OR SLAG WOOL