Patents by Inventor Sin Ung Kwak

Sin Ung Kwak 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).

  • Wheelchair type robot for walking aid
    Patent number: 8790284
    Abstract: A wheelchair type robot for use as a walking aid wherein an outer skeleton to be worn on the lower body of a user is combined with a lift and a drive part in a wheelchair form. The drive part is furnished with a drive motor and wheels that are installed on a main frame. The lift is furnished with an outer linear guide that is fixed and joined with the main frame, an inner linear guide that can move up and down along same, an upper chair part that connects with the inner linear guide to enable up and down motion, and a lower chair part that connects with the outer linear guide such that unfolds if the inner linear guide descends and folds if it ascends.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: July 29, 2014
    Assignee: Industry-University Cooperation Foundation Sogang University
    Inventors: Do Young Jeon, Hyo Sang Moon, Sin Ung Kwak, Jin Hwan Lee
  • WHEELCHAIR TYPE ROBOT FOR WALKING AID
    Publication number: 20110201978
    Abstract: A wheelchair type robot for use as a walking aid wherein an outer skeleton to be worn on the lower body of a user is combined with a lift and a drive part in a wheelchair form. The drive part is furnished with a drive motor and wheels that are installed on a main frame. The lift is furnished with an outer linear guide that is fixed and joined with the main frame, an inner linear guide that can move up and down along same, an upper chair part that connects with the inner linear guide to enable up and down motion, and a lower chair part that connects with the outer linear guide such that unfolds if the inner linear guide descends and folds if it ascends.
    Type: Application
    Filed: October 9, 2009
    Publication date: August 18, 2011
    Inventors: Do Young Jeon, Hyo Sang Moon, Sin Ung Kwak, Jin Hwan Lee