The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2015
Filed:
Oct. 23, 2008
Holger Winkler, Darmstadt, DE;
Reinhold Rueger, Roedermark, DE;
Ralf Petry, Griesheim, DE;
Tim Vosgroene, Ober-Ramstadt, DE;
Walter Tews, Greifswald, DE;
Holger Winkler, Darmstadt, DE;
Reinhold Rueger, Roedermark, DE;
Ralf Petry, Griesheim, DE;
Tim Vosgroene, Ober-Ramstadt, DE;
Walter Tews, Greifswald, DE;
MERCK PATENT GMBH, Darmstadt, DE;
Abstract
The invention relates to surface-modified phosphor particles based on luminescent particles of (Ca,Sr,Ba)SiOand/or other silicates, in each case individually or mixtures thereof with one or more activator ions, such as Eu, Mn, Ce and/or Mg and/or Zn, where at least one metal, transition-metal or semimetal oxide coating and an organic coating are applied to the luminescent particles, and to a preparation process.