Patents by Inventor Myeong-hwan Ryu

Myeong-hwan Ryu 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).

  • Interchangeable lens for camera
    Patent number: D932536
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: October 5, 2021
    Assignee: SAMYANG OPTICS CO., LTD.
    Inventors: Soo Won Yoon, Eun Jin Kim, Myeong-hwan Ryu, Dong Kyu Heo
  • Interchangeable lens for camera
    Patent number: D1030845
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: June 11, 2024
    Assignee: SAMYANG OPTICS CO., LTD.
    Inventors: Soo Won Yoon, Myeong Hwan Ryu
  • Interchangeable lens for camera
    Patent number: D1051972
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: November 19, 2024
    Assignee: SAMYANG OPTICS CO., LTD.
    Inventors: Soo Won Yoon, Eun Jin Kim, Myeong Hwan Ryu