Patents by Inventor Ken YIP

Ken YIP 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).

  • Method of evidencing existence of digital documents and a system therefor
    Patent number: 11177940
    Abstract: A computer-implemented method for evidencing the existence of a digital document has the steps of obtaining one or a plurality of time stamp(s) of the digital document, obtaining one or a plurality of cryptographic hash(es) of the digital document, generating one or a plurality of evidence key(s) based on the time stamp(s) and the cryptographic hash(es), and storing the evidence key(s) to provide one or a plurality of stored evidence key(s). A computer system for evidencing the existence of a digital document is also provided. A computer-implemented tag chain system is also described.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: November 16, 2021
    Assignee: 707 Limited
    Inventors: Johnson Zone An Kong, Michael Ming-Jae Lin, Ronald Ker Wei Yu, Ken Yip
  • METHOD OF EVIDENCING EXISTENCE OF DIGITAL DOCUMENTS AND A SYSTEM THEREFOR, AND TAG CHAIN BLOCKCHAIN SYSTEM
    Publication number: 20200382277
    Abstract: A computer-implemented method for evidencing the existence of a digital document has the steps of obtaining one or a plurality of time stamp(s) of the digital document, obtaining one or a plurality of cryptographic hash(es) of the digital document, generating one or a plurality of evidence key(s) based on the time stamp(s) and the cryptographic hash(es), and storing the evidence key(s) to provide one or a plurality of stored evidence key(s). A computer system for evidencing the existence of a digital document is also provided. A computer-implemented tag chain system is also described.
    Type: Application
    Filed: June 19, 2018
    Publication date: December 3, 2020
    Inventors: Johnson Zone An KONG, Michael Ming-Jae Lin, Ronald Ker Wei YU, Ken YIP