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. 12, 2023
Filed:
Aug. 26, 2021
Applicant:
Wavefront Technology, Inc., Paramount, CA (US);
Inventors:
Roger Winston Phillips, Santa Rosa, CA (US);
Christopher Chapman Rich, Rancho Palos Verdes, CA (US);
Joel Mikael Petersen, Valley Village, CA (US);
Assignee:
WAVEFRONT TECHNOLOGY, INC., Paramount, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B42D 25/373 (2014.01); B42D 25/29 (2014.01); B42D 25/351 (2014.01); B42D 25/355 (2014.01); B42D 25/378 (2014.01); B42D 25/45 (2014.01);
U.S. Cl.
CPC ...
B42D 25/373 (2014.10); B42D 25/29 (2014.10); B42D 25/351 (2014.10); B42D 25/355 (2014.10); B42D 25/378 (2014.10); B42D 25/45 (2014.10);
Abstract
A document, product, or package, such as a banknote, passport or the like comprises structures having dichroic effects that change color with viewing angle in both transmission and reflection. Such structures can be useful as security features that counter the ability to effectively use counterfeit documents, products, packages, etc.