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. 01, 2011
Filed:
May. 04, 2006
James M. Gallas, San Antonio, TX (US);
Ira Hessel, San Antonio, TX (US);
James M. Gallas, San Antonio, TX (US);
Ira Hessel, San Antonio, TX (US);
Photoprotective Technologies, San Antonio, TX (US);
Abstract
Light filters that use yellow melanin or melanin like materials prepared to have a yellow color and a melanin transmission spectrum in combination with a photochromic dye are disclosed. The yellow form of melanin has minimal impact on the perception of light intensity with transmission values greater than 80%. The combination allows for a single light filter suitable for both night driving and sunglass applications and which also preserve color perception.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile