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, 2019
Filed:
Apr. 22, 2016
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Gary T. Boyd, Woodbury, MN (US);
Robert M. Emmons, Saint Paul, MN (US);
Kenneth A. Epstein, Saint Paul, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01); G02B 5/02 (2006.01); G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0056 (2013.01); G02B 5/3083 (2013.01); G02B 6/0025 (2013.01); G02B 6/0053 (2013.01); G02B 6/0055 (2013.01); G02B 5/0231 (2013.01); G02B 6/0091 (2013.01);
Abstract
Optical films are described. In particular, optical films that include top and bottom structured surfaces are described. Films that may be suitable for use in backlights as turning films or recycling films are also described. Optical films described may include reflective polarizers and optically birefringent substrates.