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:
Aug. 26, 2003
Filed:
Sep. 21, 2000
Roy L. Anderson, Glendale, CA (US);
William R. Bryant, Jr., Manasas, VA (US);
Jacob Y. Wong, Goleta, CA (US);
PrivaSys, Inc., San Francisco, CA (US);
Abstract
A user can customize use of a payment card, which can be an electronic card, by selecting either a first or a second user key as a selected user key. The selected user key is entered into a card number generator that uses it and a user sequence number to generate a user payment card number that differs for each transaction through use of an algorithm. Multiple payment card transactions can be handled differently depending upon which user key is chosen as the selected user key. Different user keys can be used for different accounts, different types of transactions, or to classify the transactions. A user can receive one bill, or multiple bills. Different levels of privacy can be accorded to transactions that use different user keys. A user may pay the issuer for increased security, or the user may be paid by the issuer to allow transaction data to be distributed to third parties.