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. 30, 2003
Filed:
Jan. 09, 2001
Applicant:
Inventors:
Mark J. Hampden-Smith, Albuquerque, NM (US);
Toivo T. Kodas, Albuquerque, NM (US);
James Caruso, Albuquerque, NM (US);
Quint H. Powell, Albuquerque, NM (US);
Klaus Kunze, Albuquerque, NM (US);
Daniel J. Skamser, Greenville, SC (US);
Assignee:
Superior Micropowders LLP, Albuquerque, NM (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 1/156 ; C09K 1/162 ; C09K 1/154 ;
U.S. Cl.
CPC ...
C09K 1/156 ; C09K 1/162 ; C09K 1/154 ;
Abstract
Electroluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the economic production of such powders. The invention also relates to improved devices, such as electroluminescent display devices, incorporating the phosphor powders.