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:
Jul. 14, 2020
Filed:
Jun. 23, 2016
3m Innovative Properties Company, St. Paul, MN (US);
Adam D. Miller, St. Paul, MN (US);
Daniel E. Isaacson, St. Paul, MN (US);
Bert T. Chien, St. Paul, MN (US);
William B. Kolb, Stillwater, MN (US);
Matthew H. Frey, Cottage Grove, MN (US);
Guanglei Du, Woodbury, NC (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A photochromic article is provided, containing a structural component, a fluid in contact with the structural component, and a polyoxometalate complex in contact with the fluid. The polyoxometalate complex includes a counter cation complexed with either a polyoxometalate anion or a polyoxometalate derivative anion. The structural component includes a porous material, a plurality of cavities, or both. The article is photochromic. A method of changing a light transmission of a photochromic article is provided, as is a method of changing a light reflectance of a photochromic article. A method of forming a photochromic article is also provided.