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:
Jan. 08, 2019
Filed:
May. 30, 2018
Eie Materials, Inc., Lexington, KY (US);
Alan C. Thomas, Yardley, PA (US);
Yuming Xie, Sugar Land, TX (US);
Jonathan Melman, Lexington, KY (US);
Robert Nordsell, Lexington, KY (US);
EIE MATERIALS, INC., Lexington, KY (US);
Abstract
Thioaluminate phosphor particles having a coating comprising or consisting essentially of a nitride, and methods for making such phosphor particles, are disclosed. Phosphor-converted light emitting diodes may comprise such coated phosphor particles. The nitride coatings on the thioaluminate phosphor particles provide a significantly improved barrier to water compared, to an aluminum oxide coating, and extend the operational lifetime of such a phosphor-converted light emitting diode.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile