Patents by Inventor Tiancheng Xie

Tiancheng Xie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Updatable private set intersection
    Patent number: 12367198
    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.
    Type: Grant
    Filed: July 26, 2024
    Date of Patent: July 22, 2025
    Assignee: Visa International Service Association
    Inventors: Saikrishna Badrinarayanan, Peihan Miao, Tiancheng Xie
  • UPDATABLE PRIVATE SET INTERSECTION
    Publication number: 20240386020
    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.
    Type: Application
    Filed: July 26, 2024
    Publication date: November 21, 2024
    Applicant: Visa International Service Association
    Inventors: Saikrishna Badrinarayanan, Peihan Miao, Tiancheng Xie
  • Updatable private set intersection
    Patent number: 12079219
    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.
    Type: Grant
    Filed: May 19, 2021
    Date of Patent: September 3, 2024
    Assignee: Visa International Service Association
    Inventors: Saikrishna Badrinarayanan, Peihan Miao, Tiancheng Xie
  • UPDATABLE PRIVATE SET INTERSECTION
    Publication number: 20230359631
    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.
    Type: Application
    Filed: May 19, 2021
    Publication date: November 9, 2023
    Applicant: Visa International Service Association
    Inventors: Saikrishna Badrinarayanan, Peihan Miao, Tiancheng Xie