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:
May. 14, 2013
Filed:
Jun. 10, 2010
Applicants:
Duhane Lam, Vancouver, CA;
Neil R. Branda, Vancouver, CA;
Andreea Spantulescu, New Westminster, CA;
Inventors:
Assignee:
Switch Materials, Inc., Burnaby, British Columbia, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/03 (2006.01);
U.S. Cl.
CPC ...
Abstract
Variable transmittance optical filters capable of transitioning from a light state to a dark state on exposure to UV radiation and from a dark state to a light state with application of an electric voltage are provided. The optical filters comprise a switching material that comprises one or more chromophores that have electrochromic and photochromic properties.
Lam, Duhane. (2013). Variable transmittance optical filter and uses thereof (U.S. Patent No. 8441707). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8441707
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile