Patents by Inventor Karl Benedikt Bünz

Karl Benedikt Bünz 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).

  • Publication number: 20240095728
    Abstract: Blockchain-based, smart contract platforms have great promise to remove trust and add transparency to distributed applications. However, this benefit often comes at the cost of greatly reduced privacy. Techniques for implementing a privacy-preserving smart contract is described. The system can keep accounts private while not losing functionality and with only a limited performance overhead. This is achieved by building a confidential and anonymous token on top of a cryptocurrency. Multiple complex applications can also be built using the smart contract system.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 21, 2024
    Applicants: VISA INTERNATIONAL SERVICE ASSOCIATIN, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Shashank Agrawal, Karl Benedikt Bünz, Mahdi Zamani, Dan Boneh
  • Patent number: 11861606
    Abstract: Blockchain-based, smart contract platforms have great promise to remove trust and add transparency to distributed applications. However, this benefit often comes at the cost of greatly reduced privacy. Techniques for implementing a privacy-preserving smart contract is described. The system can keep accounts private while not losing functionality and with only a limited performance overhead. This is achieved by building a confidential and anonymous token on top of a cryptocurrency. Multiple complex applications can also be built using the smart contract system.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: January 2, 2024
    Assignees: Visa International Service Association, THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY
    Inventors: Shashank Agrawal, Karl Benedikt Bünz, Mahdi Zamani, Dan Boneh
  • Publication number: 20220129884
    Abstract: Blockchain-based, smart contract platforms have great promise to remove trust and add transparency to distributed applications. However, this benefit often comes at the cost of greatly reduced privacy. Techniques for implementing a privacy-preserving smart contract is described. The system can keep accounts private while not losing functionality and with only a limited performance overhead. This is achieved by building a confidential and anonymous token on top of a cryptocurrency. Multiple complex applications can also be built using the smart contract system.
    Type: Application
    Filed: January 7, 2022
    Publication date: April 28, 2022
    Inventors: Shashank Agrawal, Karl Benedikt Bünz, Mahdi Zamani, Dan Boneh
  • Patent number: 11257077
    Abstract: Blockchain-based, smart contract platforms have great promise to remove trust and add transparency to distributed applications. However, this benefit often comes at the cost of greatly reduced privacy. Techniques for implementing a privacy-preserving smart contract is described. The system can keep accounts private while not losing functionality and with only a limited performance overhead. This is achieved by building a confidential and anonymous token on top of a cryptocurrency. Multiple complex applications can also be built using the smart contract system.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: February 22, 2022
    Assignees: Visa International Service Association, The Board of Trustees of the Leland Stanford Junior University
    Inventors: Shashank Agrawal, Karl Benedikt Bünz, Mahdi Zamani, Dan Boneh
  • Publication number: 20190164153
    Abstract: Blockchain-based, smart contract platforms have great promise to remove trust and add transparency to distributed applications. However, this benefit often comes at the cost of greatly reduced privacy. Techniques for implementing a privacy-preserving smart contract is described. The system can keep accounts private while not losing functionality and with only a limited performance overhead. This is achieved by building a confidential and anonymous token on top of a cryptocurrency. Multiple complex applications can also be built using the smart contract system.
    Type: Application
    Filed: November 30, 2018
    Publication date: May 30, 2019
    Inventors: Shashank Agrawal, Karl Benedikt Bünz, Mahdi Zamani, Dan Boneh