Patents by Inventor Seung S. Hwang

Seung S. Hwang 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).

  • Polymeric contact lens material of improved oxygen permeability
    Patent number: 5424468
    Abstract: This specification provides a polymeric material useful for manufacturing contact lenses having improved oxygen permeability. The contact lenses prepared from the polymeric material of the invention show improved hydrophilicity and enhanced oxygen permeability as compared with that made of the conventional fluoroalkyl-containing polymeric materials.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: June 13, 1995
    Assignee: Korea Institute of Science and Technology
    Inventors: Kwang U. Kim, Tae S. Park, Seung S. Hwang, Jong C. Lee, Moo S. Lee, Seong M. Cheong