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. 01, 2019
Filed:
Jan. 17, 2013
Applicant:
Nabil Lawandy, Saunderstown, RI (US);
Inventor:
Nabil Lawandy, Saunderstown, RI (US);
Assignee:
Spectra Systems Corporation, Providence, RI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B42D 25/378 (2014.01); G06K 19/06 (2006.01); B42D 25/29 (2014.01); G07D 7/1205 (2016.01);
U.S. Cl.
CPC ...
G06K 19/0614 (2013.01); B42D 25/29 (2014.10); B42D 25/378 (2014.10); G06K 19/06028 (2013.01); G07D 7/1205 (2017.05); B42D 2035/34 (2013.01);
Abstract
Systems and methods for document and product authentication are provided using a combination of interacting absorption and emission materials that are formed into covert optically encoded markings. The markings are formed from at least one emitter and at least one absorber, that exhibit a first emission in response to a first excitation of the emitter and a change in that emission in response to excitation of the absorber such that various combinations of emitter and absorber materials create a machine readable response that cannot be detected by the human eye.