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:
Jan. 11, 2005
Filed:
Oct. 30, 2003
Yaoqi Joe Liu, Shoreview, MN (US);
Robert L. Brott, Woodbury, MN (US);
Jeffrey J. Cernohous, Hudson, WI (US);
Ying-yuh LU, Woodbury, MN (US);
Robert S. Moshrefzadeh, Oakdale, MN (US);
Kevin R. Schaffer, Woodbury, MN (US);
Yaoqi Joe Liu, Shoreview, MN (US);
Robert L. Brott, Woodbury, MN (US);
Jeffrey J. Cernohous, Hudson, WI (US);
Ying-Yuh Lu, Woodbury, MN (US);
Robert S. Moshrefzadeh, Oakdale, MN (US);
Kevin R. Schaffer, Woodbury, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Described are multilayer optical composites including a first layer having an index of refraction n, an ilayer having an index of refraction ngreater than n, and one or two or more intermediate layers between the first layer and the ilayer, wherein the indices of refraction of the intermediate layers are between nand n, and the index of refraction of each intermediate layer increases in the order of position of each layer from the first layer.