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:
Aug. 25, 2020
Filed:
Oct. 17, 2017
3m Innovative Properties Company, St. Paul, MN (US);
Nicholas C. Erickson, St. Paul, MN (US);
Moses M. David, Woodbury, MN (US);
Xiaoguang Sun, Woodbury, MN (US);
Manoj Nirmal, St. Paul, MN (US);
Haeen Sykora, Hudson, WI (US);
Hui Luo, Woodbury, MN (US);
Samuel J. Carpenter, Shoreview, MN (US);
Jilliann M. Nelson, Shoreview, MN (US);
Justin P. Meyer, Oakdale, MN (US);
Bert T. Chien, St. Paul, MN (US);
David J. Rowe, Roseville, MN (US);
Robert L. Brott, Woodbury, MN (US);
David G. Freier, St. Paul, MN (US);
Hyacinth L. Lechuga, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A nanostructured article having a first layer with a nanostructured surface is described. The nanostructured surface includes a plurality of pillars extending from a base surface of the first layer. The pillars have an average height greater than an average lateral dimension of the pillars. An average center-to-center spacing between pillars is no more than 2000 nm. The average lateral dimension is no less than 50 nm. Each pillar in the plurality of pillars has at least a lower portion and an upper portion where the lower portion is between the upper portion and the base surface, and the upper and lower portions have differing compositions. The nanostructured article includes a second layer disposed over the plurality of pillars and extending continuously to the base surface.