Thomas Krucken

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Aachen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Debris mitigation system with improved gas distribution
- Patent number 8,873,021
- Issue date Oct 28, 2014
- Koninklijke Philips N.V.
- Gunther Hans Derra
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of and device for operating a gas discharge lamp
- Patent number 6,586,892
- Issue date Jul 1, 2003
- Koninklijke Philips Electronics N.V.
- Günther Hans Derra
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Long life discharge lamp operating circuit with reduced lamp flicker
- Patent number 6,239,556
- Issue date May 29, 2001
- U.S. Philips Corporation
- Gunther H. Derra
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Circuit arrangement for operating a high-pressure discharge lamp
- Patent number 6,232,725
- Issue date May 15, 2001
- U.S. Philips Corporation
- Gunther H. Derra
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Debris Mitigation System with Improved Gas Distribution
- Publication number 20080212044
- Publication date Sep 4, 2008
- Koninklijke Philips Electronics, N.V.
- Gunther Hans Derra
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method of and device for operating a gas discharge lamp
- Publication number 20020011803
- Publication date Jan 31, 2002
- KONINLIJKE PHILIPS ELECTRONICS N.V.
- Gunther Hans Derra
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR