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:
Jul. 22, 2025
Filed:
Jul. 26, 2024
Visa International Service Association, San Francisco, CA (US);
Saikrishna Badrinarayanan, Fremont, CA (US);
Peihan Miao, Chicago, IL (US);
Tiancheng Xie, Richmond, CA (US);
Visa International Service Association, San Francisco, CA (US);
Abstract
'Updatable' private set intersection (PSI) protocols allow parties that each have an updatable private set to determine the intersection of their sets after an update without the need to compare each element of each set and without compromising privacy. In some protocols, a first party can determine an update to the intersection by determining an intersection of elements that were previously in the first party's set with elements that were added to the second party's set and determining an intersection of elements that were added to the first party's set with elements that are in the second party's (updated) set. In some protocols, both parties can determine the updated intersection.