Patents by Inventor Duckhwan Sung

Duckhwan Sung 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).

  • Power train for hybrid vehicle
    Patent number: 8241166
    Abstract: The present invention provides a power train for a hybrid vehicle that allows for multiple mode driving, which is combined with a way of driving at a fixed gear ratio such as the shift stages of a common transmission, and high-efficiency driving, thereby improving fuel efficiency of the vehicle.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: August 14, 2012
    Assignee: Hyundai Motor Company
    Inventor: Duckhwan Sung
  • POWER TRAIN FOR HYBRID VEHICLE
    Publication number: 20100273594
    Abstract: The present invention provides a power train for a hybrid vehicle that allows for multiple mode driving, which is combined with a way of driving at a fixed gear ratio such as the shift stages of a common transmission, and high-efficiency driving, thereby improving fuel efficiency of the vehicle.
    Type: Application
    Filed: November 30, 2009
    Publication date: October 28, 2010
    Applicant: HYUNDAI MOTOR COMPANY
    Inventor: Duckhwan Sung