Volker Wittwer

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Freiburg-Tiengen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Glazing element
- Patent number 6,496,295
- Issue date Dec 17, 2002
- Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung E.V.
- Volker Wittwer
- G02 - OPTICS
Information Patent Grant
Material having temperature-defendant light transmission
- Patent number 5,916,972
- Issue date Jun 29, 1999
- BASF Aktiengesellschaft
- Wolfgang Eck
- G02 - OPTICS
Information Patent Grant
Glazing element, in particular for facing building facades
- Patent number 5,864,994
- Issue date Feb 2, 1999
- Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
- Wolfgang Graf
- G02 - OPTICS
Information Patent Grant
Indicator device having electro-optical light valve unit
- Patent number 4,264,147
- Issue date Apr 28, 1981
- Siemens Aktiengesellschaft
- Guenther Baur
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
SPLINTER PROTECTION WITH OPTICAL AND THERMAL FUNCTIONALITY
- Publication number 20090038244
- Publication date Feb 12, 2009
- Tilmann Kuhn
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Application
Sun protection device having a plurality of segments that are orien...
- Publication number 20060109555
- Publication date May 25, 2006
- Fraunhofer Gesellschaft zur Forderung der angewandten Forschung e.V.
- Peter Nitz
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Application
Device for guiding light
- Publication number 20050254130
- Publication date Nov 17, 2005
- Wolfgang Graf
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS