Patents by Inventor Yong Chung

Yong Chung 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).

  • Wound dressings
    Patent number: 5667501
    Abstract: A wound dressing comprises a chemically modified polymer which has a free radical activity in the DPPH Test in the range 15-80 percent. It may comprise a chemically modified polymer which carries at least one chemical group which is a persistent free radical or a precursor therefor. It may comprise a chemically modified polymer which carries at least one chemical group capable of reacting with molecular oxygen in a wound environment to form hydrogen peroxide. It may comprise a chemically modified polymer capable of stimulating the activity of macrophages or the proliferation of fibroblasts or both in a wound environment.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: September 16, 1997
    Assignee: University College Cardiff Consultants Limited
    Inventors: Michael Fowler, Thomas Richard Burrow, Terence Dudley Turner, Ryszard Jan Schmidt, Lip Yong Chung
  • Curved channel membrane filtration
    Patent number: 5204002
    Abstract: A filtration apparatus and method utilizes inner and outer walls of porous material which curve around an axis of curvature to define a narrow channel having a spiral shape. The curvature of the spiral and/or the gap width of the channel is selected to create and maintain Dean vortices within the flow of fluid along the channel to maintain good flux of filtrate through the porous walls.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: April 20, 1993
    Assignee: Rensselaer Polytechnic Institute
    Inventors: Georges Belfort, Mary E. Brewster, Kun-Yong Chung
  • Needle holder
    Patent number: D263894
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: April 20, 1982
    Inventor: Tae Yong Chung