Patents by Inventor Andrew Garfinkle

Andrew 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 biocompatibility of biomaterials
    Patent number: 4656083
    Abstract: A method of treating articles to improve their biocompatibility is disclosed. A 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 halocarbon or halohydrocarbon gas, capable of forming 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 improve their biocompatibility.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: April 7, 1987
    Assignee: Washington Research Foundation
    Inventors: Allan S. Hoffman, Andrew Garfinkle, Buddy D. Ratner, Stephen R. Hanson