Patents by Inventor Young Hak Kwak

Young Hak 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).

  • Method for launching/constructing bridge using assembly of precast bottom plate and concrete-filled steel tube truss girder
    Patent number: 10161090
    Abstract: A method for launching/constructing a bridge using assembly of a precast bottom plate and a concrete-filled steel tube truss girder, wherein a CFT truss girder and a precast bottom plate are provisionally assembled, thereby forming a segment, and then a plurality of segments are successively launched, thereby constructing a bridge.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: December 25, 2018
    Assignee: Korea Railroad Research Institute
    Inventors: Kyoung Chan Lee, In Ho Yeo, Sung Il Kim, Seung Yup Jang, Hyun-Min Kim, Ki Hyun Kim, Hyang Wook Ma, Young Hak Kwak, Yoon Bong Shin, In Gyu Kim, Young Jin Kim
  • METHOD FOR LAUNCHING/CONSTRUCTING BRIDGE USING ASSEMBLY OF PRECAST BOTTOM PLATE AND CONCRETE-FILLED STEEL TUBE TRUSS GIRDER
    Publication number: 20180291570
    Abstract: The present invention relates to a method for launching/constructing a bridge using assembly of a precast bottom plate and a concrete-filled steel tube truss girder, wherein a CFT truss girder and a precast bottom plate are provisionally assembled, thereby forming a segment, and then a plurality of segments are successively launched, thereby constructing a bridge.
    Type: Application
    Filed: October 26, 2015
    Publication date: October 11, 2018
    Inventors: Kyoung Chan Lee, In Ho Yeo, Sung Il Kim, Seung Yup Jang, Hyun-Min Kim, Ki Hyun Kim, Hyang Wook Ma, Young Hak Kwak, Yoon Bong Shin, In Gyu Kim, Young Jin Kim