Patents by Inventor Seok-Jin Oh

Seok-Jin Oh 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).

  • Light weight silica balls with a dense outer layer and method of making the same
    Patent number: 5650129
    Abstract: The present invention provides silica balls in a spherical shape, the silica balls having a porous internal structure and a dense outside layer.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: July 22, 1997
    Assignees: Korea Atomic Energy Research Institute, Korea Electric Power Corporation
    Inventors: Thae-Khapp Kang, Seok-Jin Oh, Sun-Jae Kim, Choong-Hwan Jung, Il-Hyun Kuk