Patents by Inventor Sunwook Kwack

Sunwook Kwack 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).

  • Smart key for construction machine
    Patent number: D915865
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: April 13, 2021
    Assignee: DOOSAN INFRACORE CO., LTD.
    Inventors: Seula Choi, Minki Kim, Yoojeung Lim, Sunwook Kwack
  • Air vent cap
    Patent number: D919076
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: May 11, 2021
    Assignee: DOOSAN INFRACORE CO., LTD.
    Inventors: Seula Choi, Minki Kim, Yoojeung Lim, Sunwook Kwack
  • Start button for construction machinery
    Patent number: D928731
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: August 24, 2021
    Assignee: DOOSAN INFRACORE CO., LTD.
    Inventors: Seula Choi, Minki Kim, Yoojeung Lim, Sunwook Kwack
  • Excavator
    Patent number: D934922
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: November 2, 2021
    Assignee: DOOSAN INFRACORE CO., LTD.
    Inventors: Juntae Kim, Seula Choi, Hokwang Ryu, Yoojeung Lim, Eunsook Seo, Sunwook Kwack, Younsik Bae, Nadan Cho
  • Wheel loader
    Patent number: D936707
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: November 23, 2021
    Assignee: DOOSAN INFRACORE CO., LTD.
    Inventors: Juntae Kim, Seula Choi, Hokwang Ryu, Yoojeung Lim, Eunsook Seo, Sunwook Kwack, Younsik Bae, Nadan Cho
  • Dump truck
    Patent number: D1006678
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: December 5, 2023
    Assignee: DOOSAN INFRACORE CO., LTD.
    Inventors: Juntae Kim, Nadan Cho, Yoojeung Lim, Eunsook Seo, Sunwook Kwack, Younsik Bae, Hokwang Ryu, Seula Choi
  • Instrument panel for construction machine
    Patent number: D1013738
    Type: Grant
    Filed: May 4, 2022
    Date of Patent: February 6, 2024
    Assignee: HD HYUNDAI INFRACORE CO., LTD.
    Inventors: Younsik Bae, Hokwang Ryu, Dongchul Lee, Minki Kim, Yoojeung Lim, Sunwook Kwack, Kwangwee Park, Jaewoo Bae