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:
Apr. 17, 2001
Filed:
Jun. 26, 1998
Applicant:
Inventors:
William Wong, Fremont, CA (US);
Michael L. Rutigliano, Chandler, AZ (US);
David A. Brown, San Jose, CA (US);
Assignee:
Intel Corporation, Santa Clara, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/126 ;
U.S. Cl.
CPC ...
G02B 5/126 ;
Abstract
A simplified method and apparatus for creating counterfeit-resistant labels is described. A laser is used to mark a retro-reflective material such that light only from specific directions are reflected back towards the source. During authentication of the labels, the label is tilted to verify that only light from the specific directions are reflected back towards the source.