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:
May. 05, 2015
Filed:
Dec. 10, 2010
Applicants:
Paul Dunn, Leicestershire, GB;
Robert Edward Renton, Lincolnshire, GB;
Donald William Tomkins, Lancaster, PA (US);
Inventors:
Paul Dunn, Leicestershire, GB;
Robert Edward Renton, Lincolnshire, GB;
Donald William Tomkins, Lancaster, PA (US);
Assignee:
Opsec Security Group, Inc., Denver, CO (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/10 (2006.01); G07D 7/00 (2006.01); G07D 7/12 (2006.01);
U.S. Cl.
CPC ...
G07D 7/0006 (2013.01); G07D 7/0013 (2013.01); G07D 7/124 (2013.01);
Abstract
An optically variable device ('OVD') with an integral image system that includes a focusing element and an array of micro-objects which, when viewed through the focusing element, changes in appearance depending on the relative location from which the OVD is observed. A security device including the OVD and methods for creating the OVD are also disclosed.