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:
Sep. 21, 2010
Filed:
Oct. 31, 2006
Christopher A. Adkins, Lexington, KY (US);
Michael C. Campbell, Lexington, KY (US);
Donald F. Croley, Georgetown, KY (US);
Timothy L. Strunk, Lexington, KY (US);
Christopher A. Adkins, Lexington, KY (US);
Michael C. Campbell, Lexington, KY (US);
Donald F. Croley, Georgetown, KY (US);
Timothy L. Strunk, Lexington, KY (US);
Lexmark International, Inc., Lexington, KY (US);
Abstract
A method of generating an authentication code for a consumable includes assigning an identification number to the consumable; processing an input including at least the identification number, using a first algorithm, to generate a preliminary number different from the identification number; and compressing the preliminary number using a compression algorithm, different from the first algorithm, that utilizes the identification number to generate an authentication value for use in authenticating the consumable.