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:
Nov. 16, 2010
Filed:
Jan. 12, 2007
Chen-wen Fan, Sayre, PA (US);
Tuan A. Dang, Sayre, PA (US);
Joan M. Coveleskie, Sayre, PA (US);
Frank A. Schwab, Towanda, PA (US);
Dale E. Benjamin, Athens, PA (US);
David C. Sheppeck, Sayre, PA (US);
Chen-Wen Fan, Sayre, PA (US);
Tuan A. Dang, Sayre, PA (US);
Joan M. Coveleskie, Sayre, PA (US);
Frank A. Schwab, Towanda, PA (US);
Dale E. Benjamin, Athens, PA (US);
David C. Sheppeck, Sayre, PA (US);
Global Tungsten & Powders Corp., Towanda, PA (US);
Abstract
The present invention is an electroluminescent phosphor wherein each individual phosphor particle is encapsulated in an inorganic coating applied by an atomic layer deposition (ALD) coating method. In a preferred embodiment, the coating is aluminum oxyhydroxide. The encapsulated phosphor shows an extreme insensitivity to atmospheric moisture and suffers only minor loss of initial brightness in lamps.