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:
Nov. 29, 2022
Filed:
Sep. 24, 2019
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
John A. Wheatley, Stillwater, MN (US);
Susannah C. Clear, Hastings, MN (US);
Assignee:
3M Innovative Properties Company, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06V 10/143 (2022.01); B60W 60/00 (2020.01); G02B 5/124 (2006.01); G06V 10/60 (2022.01); G06V 10/145 (2022.01); G06V 20/58 (2022.01); G06V 30/224 (2022.01); G06V 10/58 (2022.01);
U.S. Cl.
CPC ...
G06V 10/143 (2022.01); B60W 60/001 (2020.02); G02B 5/124 (2013.01); G06V 10/145 (2022.01); G06V 10/60 (2022.01); G06V 20/582 (2022.01); G06V 30/224 (2022.01); B60W 2420/52 (2013.01); B60W 2552/00 (2020.02); G06V 10/58 (2022.01);
Abstract
In some examples, a retroreflective article may include a retroreflective substrate, and an optical pattern embodied on the retroreflective substrate. The optical pattern may include a first optical sub-pattern and a second optical sub-pattern, wherein the optical pattern represents a set of information that is interpretable based on a combination of the first optical sub-pattern that is visible in a first light spectrum and the second optical sub-pattern that is visible in a second light spectrum. The first and second light spectra may be different.