Patents by Inventor Dong Gook Park

Dong Gook Park 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).

  • Asphalt modifier of styrene-butadiene-styrene block copolymer and styrene-butadiene latex
    Patent number: 6503968
    Abstract: This invention relates to an asphalt modifier comprising 5˜30 wt. %. of solubilized styrene-butadiene-styrene block copolymer and 70˜95 wt. % of solubilized styrene-butadiene latex, which has an excellent resistance property against plastic deformation, while preventing the occurrence of crack at a low temperature.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: January 7, 2003
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Young Sang Kim, Dong Gook Park, Kyo Dong Jo
  • Countermeasure against denial-of-service attack on authentication protocols using public key encryption
    Publication number: 20020073322
    Abstract: The present invention gives robustness for the denial-of-service to the authentication protocol itself, loads no additional public key computation, and is applicable to any authentication protocol in which the client authenticates the server by sending the client's random number encrypted under the public key of the server.
    Type: Application
    Filed: December 28, 2000
    Publication date: June 13, 2002
    Inventors: Dong-Gook Park, Jung-Joon Kim