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. 24, 2019
Filed:
Mar. 28, 2016
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Timothy J. Hebrink, Scandia, MN (US);
Mark A. Roehrig, Stillwater, MN (US);
Mark D. Weigel, Hugo, MN (US);
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/20 (2006.01); G02B 1/04 (2006.01); G02B 5/28 (2006.01); G02B 1/14 (2015.01); G02B 5/08 (2006.01); G02B 1/10 (2015.01);
U.S. Cl.
CPC ...
G02B 5/208 (2013.01); G02B 1/04 (2013.01); G02B 1/14 (2015.01); G02B 5/0841 (2013.01); G02B 5/0891 (2013.01); G02B 5/283 (2013.01); G02B 5/287 (2013.01); G02B 1/105 (2013.01);
Abstract
Multi-layer optical film comprising optical layers reflecting at least 50 percent of incident UV light over specified wavelength ranges. Embodiments of the multi-layer optical films are useful, for example, as a UV protective covering.