Patents by Inventor Andrew M. Garfinkle

Andrew M. Garfinkle 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).

  • Plasma gas discharge treatment for improving the compatibility of biomaterials
    Patent number: 5034265
    Abstract: A method of treating articles to improve their biocompatibility is disclosed. A polymeric substrate material is positioned within a reactor vessel and exposed to plasma gas discharge in the presence of an atmosphere of an inert gas and then in the presence of an organic gas, such as a fluorinated hydrocarbon gas, which forms a thin, biocompatible surface covalently bonded to the surface of the substrate. The method is particularly useful in the treatment of vascular graft materials to produce grafts that are both thrombi- and emboli-resistant.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: July 23, 1991
    Assignee: Washington Research Foundation
    Inventors: Allan S. Hoffman, Andrew M. Garfinkle, Buddy D. Ratner, Stephen R. Hanson