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. 03, 2024
Filed:
Mar. 11, 2022
3m Innovative Properties Company, St. Paul, MN (US);
Michael A. McCoy, St. Paul, MN (US);
Anne C. Gold, St. Paul, MN (US);
Silvia Geciova-Borovova Guttmann, St. Paul, MN (US);
Glenn E. Casner, Woodbury, MN (US);
Timothy J. Gardner, St. Paul, MN (US);
Steven H. Kong, Woodbury, MN (US);
Gautam Singh, Woodbury, MN (US);
Jonathan T. Kahl, Woodbury, MN (US);
Nathan J. Anderson, Woodbury, MN (US);
Catherine L. Aune, Hammond, WI (US);
Caroline M. Ylitalo, Stillwater, MN (US);
Britton G. Billingsley, St. Paul, MN (US);
Muhammad J. Afridi, Woodbury, MN (US);
Kui Chen-Ho, Woodbury, MN (US);
Travis L. Potts, Woodbury, MN (US);
Robert W. Shannon, Stillwater, MN (US);
Guruprasad Somasundaram, St. Paul, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Optical articles including a spatially defined arrangement of a plurality of data rich retroreflective elements, wherein the plurality of retroreflective elements comprise retroreflective elements having at least two different retroreflective properties and at least two different optical contrasts with respect to a background substrate when observed within an ultraviolet spectrum, a visible spectrum, a near-infrared spectrum, or a combination thereof.