Patents by Inventor Chul Woo Kwak

Chul Woo 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).

  • Engagement Structure of Sub-Frame of Vehicle for Avoiding Collision Between Battery and Sub-Frame
    Publication number: 20230202302
    Abstract: An embodiment engagement structure includes an engagement bracket including an upper end configured to be engaged with a side member of a vehicle and connected to a region in which the side member is to be engaged with a sub-frame, wherein the engagement bracket comprises an inclined portion inclined downward toward a rear side of the vehicle.
    Type: Application
    Filed: September 28, 2022
    Publication date: June 29, 2023
    Inventors: Gi-Bong Jo, Chul-Woo Kwak, Hyun-Mo Yang, Hee-Jun Hwang
  • Vehicle sub-frame and method of manufacturing same
    Patent number: 11505250
    Abstract: Provided is a vehicle sub-frame including a front cross member, a rear cross member, and left and right side members mounted to connect the front cross member and the rear cross member to each other. Each of the left and right side members has a protrusion that protrudes laterally at a corner portion of a rear end portion thereof, the corner portion being joined to a corner portion of the rear cross member. A weld joint is formed by welding to the rear cross member along a laterally extending portion of a trim line portion of the protrusion, in which the trim line portion of the protrusion is the perimeter of the protrusion.
    Type: Grant
    Filed: September 25, 2020
    Date of Patent: November 22, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Dong Hee Industrial Co., Ltd.
    Inventors: Gi Bong Jo, Hyun Min Jang, Sang Jae Shin, Chul Woo Kwak, Soo Cheol Lee, Se Hoon Kim
  • VEHICLE SUB-FRAME AND METHOD OF MANUFACTURING SAME
    Publication number: 20210354758
    Abstract: Provided is a vehicle sub-frame including a front cross member, a rear cross member, and left and right side members mounted to connect the front cross member and the rear cross member to each other. Each of the left and right side members has a protrusion that protrudes laterally at a corner portion of a rear end portion thereof, the corner portion being joined to a corner portion of the rear cross member. A weld joint is formed by welding to the rear cross member along a laterally extending portion of a trim line portion of the protrusion, in which the trim line portion of the protrusion is the perimeter of the protrusion.
    Type: Application
    Filed: September 25, 2020
    Publication date: November 18, 2021
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Dong Hee Industrial Co., Ltd.
    Inventors: Gi Bong Jo, Hyun Min Jang, Sang Jae Shin, Chul Woo Kwak, Soo Cheol Lee, Se Hoon Kim