Wolfgang Kempfert

Person

Bad Liebenstein, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Alkaline earth metal silicate luminophores and method for improving...
- Patent number 8,815,120
- Issue date Aug 26, 2014
- Leuchtstoffwerk Breitungen GmbH
- Wolfgang Kempfert
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Light emitting device with a non-activated luminescent material
- Patent number 7,855,393
- Issue date Dec 21, 2010
- Tridonic Optoelectronics GmbH
- Sven Rösler
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Light emitting device
- Patent number 7,679,101
- Issue date Mar 16, 2010
- Toyoda Gosei Co., Ltd.
- Koichi Ota
- F21 - LIGHTING
Information Patent Grant
Light source with a light-emitting element
- Patent number 7,259,396
- Issue date Aug 21, 2007
- Toyoda Gosei Co., Ltd.
- Stefan Tasch
- F21 - LIGHTING
Information Patent Grant
Light source with a light-emitting element
- Patent number 7,187,011
- Issue date Mar 6, 2007
- Toyoda Gosei Co., Ltd.
- Stefan Tasch
- F21 - LIGHTING
Information Patent Grant
Light emitting device having a divalent-europium-activated alkaline...
- Patent number 7,157,746
- Issue date Jan 2, 2007
- Toyoda Gosei Co., Ltd
- Koichi Ota
- F21 - LIGHTING
Information Patent Grant
Light emitting device
- Patent number 7,138,660
- Issue date Nov 21, 2006
- Toyoda Gosei Co., Ltd.
- Koichi Ota
- F21 - LIGHTING
Information Patent Grant
Light emitting device having phosphor of alkaline earth metal silicate
- Patent number 6,943,380
- Issue date Sep 13, 2005
- Toyoda Gosei Co., Ltd
- Koichi Ota
- F21 - LIGHTING
Information Patent Grant
Anti-stokes fluorescent compositions and methods of use
- Patent number 6,841,092
- Issue date Jan 11, 2005
- Bundesdruckerei GmbH
- Manfred Paeschke
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Light source comprising a light-emitting element
- Patent number 6,809,347
- Issue date Oct 26, 2004
- Leuchtstoffwerk Breitungen GmbH
- Stefan Tasch
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
ALKALINE EARTH METAL SILICATE LUMINOPHORES AND METHOD FOR IMPROVING...
- Publication number 20120193579
- Publication date Aug 2, 2012
- LEUCHTSTOFFWERK BREITUNGEN GMBH
- Wolfgang Kempfert
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
LIGHT EMITTING DEVICE WITH A NON-ACTIVATED LUMINESCENT MATERIAL
- Publication number 20090294788
- Publication date Dec 3, 2009
- TRIDONIC OPTOELECTRONICS GMBH
- Sven Rosler
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Light emitting device
- Publication number 20070090383
- Publication date Apr 26, 2007
- Toyoda Gosei Co., Ltd.
- Koichi Ota
- G02 - OPTICS
Information Patent Application
Light source with a light-emitting element
- Publication number 20060267031
- Publication date Nov 30, 2006
- Stefan Tasch
- G02 - OPTICS
Information Patent Application
Light emitting device
- Publication number 20050162069
- Publication date Jul 28, 2005
- TOYODA GOSEI CO., LTD
- Koichi Ota
- G02 - OPTICS
Information Patent Application
Light source with a light-emitting element
- Publication number 20050082574
- Publication date Apr 21, 2005
- Stefan Tasch
- G02 - OPTICS
Information Patent Application
Light emitting device
- Publication number 20050077532
- Publication date Apr 14, 2005
- TOYODA GOSEI CO., LTD
- Koichi Ota
- G02 - OPTICS
Information Patent Application
Light source comprising a light-emitting element
- Publication number 20040090174
- Publication date May 13, 2004
- Stefan Tasch
- G02 - OPTICS
Information Patent Application
Light emitting device
- Publication number 20040051111
- Publication date Mar 18, 2004
- Koichi Ota
- G02 - OPTICS
Information Patent Application
Anti-stokes fluorescent compositions and methods of use
- Publication number 20020130304
- Publication date Sep 19, 2002
- Bundesdruckerei GmbH and Fa. Leuchtstoffwerk Breitungen GmbH
- Manfred Paeschke
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Wolfgang Kempfert

Person

Patents Grantslast 30 patents

Alkaline earth metal silicate luminophores and method for improving...

Light emitting device with a non-activated luminescent material

Light emitting device

Light source with a light-emitting element

Light source with a light-emitting element

Light emitting device having a divalent-europium-activated alkaline...

Light emitting device

Light emitting device having phosphor of alkaline earth metal silicate

Anti-stokes fluorescent compositions and methods of use

Light source comprising a light-emitting element

Patents Applicationslast 30 patents

ALKALINE EARTH METAL SILICATE LUMINOPHORES AND METHOD FOR IMPROVING...

LIGHT EMITTING DEVICE WITH A NON-ACTIVATED LUMINESCENT MATERIAL

Light emitting device

Light source with a light-emitting element

Light emitting device

Light source with a light-emitting element

Light emitting device

Light source comprising a light-emitting element

Light emitting device

Anti-stokes fluorescent compositions and methods of use