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:
Jun. 08, 2010
Filed:
Jul. 28, 2006
Applicants:
Kurt Piersol, Campbell, CA (US);
Stephen Weyl, Los Altos, CA (US);
Inventors:
Kurt Piersol, Campbell, CA (US);
Stephen Weyl, Los Altos, CA (US);
Assignee:
Ricoh Company, Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A printing method and apparatus includes fingerprinting a sheet of printable media such as paper to obtain a fingerprint. The fingerprint is encrypted using an encryption key known only to the user wanting to print the document. The encrypted fingerprint is then encoded and transferred to the document as machine readable information.