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. 24, 2025
Filed:
Apr. 17, 2024
Visa International Service Association, San Francisco, CA (US);
Quan Wang, Foster City, CA (US);
Visa International Service Association, San Francisco, CA (US);
Abstract
A reader device includes a processor; and a computer readable medium coupled to the processor. The computer readable medium including code, executable by the processor, to perform a method including: receiving, from a user device operated by a user, signed data and a cryptogram, wherein the signed data is determined by digitally signing data, which includes an electronic identifier associated with the user using a key stored in a secure element of the user device; determining, by the reader device, whether the cryptogram can be verified; and, upon verifying the cryptogram, sending, by the reader device, a request to a remote server computer to include the signed data in an electronic ledger.