WK

Wolfgang Kempfert

TC Toyoda Gosei Co.: 7 patents #334 of 2,296Top 15%
LG Leuchtstoffwerk Breitungen Gmbh: 6 patents #2 of 33Top 7%
TG Tridonic Optoelectronics Gmbh: 6 patents #3 of 16Top 20%
BG Bundesdruckerei Gmbh: 1 patents #100 of 183Top 55%
📍 Bad Liebenstein, DE: #1 of 7 inventorsTop 15%
Overall (All Time): #516,050 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
8815120 Alkaline earth metal silicate luminophores and method for improving the long term stability thereof Sylke Rösler, Sven Rösler, Cheng-Jun Duan, Rudolf Dennstedt 2014-08-26
7855393 Light emitting device with a non-activated luminescent material Sven Rösler, Sylke Rösler, Detlef Starick, Peter Pachler, Stefan Tasch +2 more 2010-12-21
7679101 Light emitting device Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler +3 more 2010-03-16
7259396 Light source with a light-emitting element Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Detlef Starick 2007-08-21
7187011 Light source with a light-emitting element Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Detlef Starick 2007-03-06
7157746 Light emitting device having a divalent-europium-activated alkaline earth metal orthosilicate phosphor Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler +3 more 2007-01-02
7138660 Light emitting device Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler +3 more 2006-11-21
6943380 Light emitting device having phosphor of alkaline earth metal silicate Koichi Ota, Atsuo Hirano, Akihito Ota, Stefan Tasch, Peter Pachler +3 more 2005-09-13
6841092 Anti-stokes fluorescent compositions and methods of use Manfred Paeschke, Benedikt Ahlers, Anett Bailleu, Oliver Muth, Arnim Franz-Burgholtz +2 more 2005-01-11
6809347 Light source comprising a light-emitting element Stefan Tasch, Peter Pachler, Gundula Roth, Walter Tews, Detlef Starick 2004-10-26