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:
Mar. 18, 2008
Filed:
Feb. 09, 2004
Applicants:
Bert Braune, Wenzenbach, DE;
Martin Zachau, Geltendorf, DE;
Franz Zwaschka, Ismaning, DE;
Inventors:
Assignees:
Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, München, DE;
Osram Opto Semiconductors GmbH, Regensburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/02 (2006.01); H05B 33/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A coated luminescent material having a luminescent material powder formed by grains, the luminescent grains being coated, and the coating being at most 5 nm, preferably at most 2 nm.