Patents by Inventor Dowon Hahn

Dowon Hahn 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).

  • Absorbable polymer-drug compounds and method for making same
    Patent number: 4328204
    Abstract: Drugs with active hydrogen containing groups are reacted with .alpha.-polyester homopolymers and copolymers to form compounds which slowly absorb and release the drug when implanted in animal tissue.
    Type: Grant
    Filed: March 2, 1977
    Date of Patent: May 4, 1982
    Assignee: Ethicon, Inc.
    Inventors: David Wasserman, Charles C. Versfelt, Dowon Hahn, Michael P. Wachter