Inventor

WITTWER VOLKER

DE4 patents

⚠️ This page may combine multiple inventors who share the name “WITTWER VOLKER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FRAUNHOFER GES FORSCHUNG

2 patents

US6496295B1Dec 17, 2002

Glazing element

FRAUNHOFER GES FORSCHUNG13 citations71

US5864994AFeb 2, 1999

Glazing element, in particular for facing building facades

FRAUNHOFER GES FORSCHUNG13 citations68

SIEMENS AG

1 patent

US4264147AApr 28, 1981

Indicator device having electro-optical light valve unit

SIEMENS AG29 citations86

BASF AG

1 patent

US5916972AJun 29, 1999

Material having temperature-defendant light transmission

BASF AG8 citations66