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:
Dec. 08, 2009
Filed:
Feb. 02, 2007
Applicant:
Marianne Krieg-kowald, Barrington, RI (US);
Inventor:
Marianne Krieg-Kowald, Barrington, RI (US);
Assignee:
Sperian Eye & Face Protection Inc. a Delaware Corporation, Smithfield, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A molded optical filter and a method of molding an optical filter having a characteristic full-width half max value of less than at least 59 nm with a greatly increased visible light transmission value as compared to the prior art. The optical filter utilizes a sharp cut-on dye incorporated into a moldable polymer base matrix that allows the optical filter to be formed using conventional molding equipment as has been previously unknown in the art.