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. 13, 2024
Filed:
Jun. 06, 2022
Applicant:
Case Western Reserve University, Cleveland, OH (US);
Inventors:
Eric Baer, Cleveland Heights, OH (US);
Andy Olah, Spencer, OH (US);
Zhenpeng Li, Shaker Heights, OH (US);
Michael Hore, Shaker Heights, OH (US);
Cong Zhang, Cleveland, OH (US);
Assignee:
CASE WESTERN RESERVE UNIVERSITY, Cleveland, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
B29C 48/00 (2019.01); B29C 48/08 (2019.01); B29C 48/21 (2019.01); B42D 25/378 (2014.01); B42D 25/45 (2014.01); G02B 1/04 (2006.01); G02B 5/18 (2006.01); B29K 105/00 (2006.01); B29L 7/00 (2006.01); B42D 25/21 (2014.01); B42D 25/324 (2014.01); B42D 25/328 (2014.01); B42D 25/382 (2014.01); B42D 25/387 (2014.01);
U.S. Cl.
CPC ...
B29C 48/001 (2019.02); B29C 48/08 (2019.02); B29C 48/21 (2019.02); B42D 25/378 (2014.10); B42D 25/45 (2014.10); G02B 1/04 (2013.01); G02B 5/1814 (2013.01); B29K 2105/0032 (2013.01); B29L 2007/008 (2013.01); B42D 25/21 (2014.10); B42D 25/324 (2014.10); B42D 25/328 (2014.10); B42D 25/382 (2014.10); B42D 25/387 (2014.10); G02B 2005/1804 (2013.01);
Abstract
A security marking has a physically unclonable function (PUF) wherein the PUF includes a disordered multilayer photonic crystal structure having an electromagnetic transmission and/or reflection spectrum and/or spectra upon receipt of electromagnetic radiation within a photonic bandgap region of the structure that is unique to the structure.