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. 22, 2011
Filed:
Nov. 06, 2009
Applicants:
David B. Knowles, Apollo, PA (US);
Stephen D. Straight, Austin, TX (US);
Kevin J. Stewart, Murrysville, PA (US);
Forrest R. Blackburn, Monroeville, PA (US);
Inventors:
David B. Knowles, Apollo, PA (US);
Stephen D. Straight, Austin, TX (US);
Kevin J. Stewart, Murrysville, PA (US);
Forrest R. Blackburn, Monroeville, PA (US);
Assignee:
Transitions Optical, Inc., Pinellas Park, FL (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/01 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided is a photochromic optical articleincluding: (a) an optical substrate; (b) a thermally reversible photochromic material; and (c) reversible thermochromic material capable of at least partially filtering UV/visible light at or below room temperature and becoming less capable of filtering UV/visible light at temperatures greater than room temperature.