Patents by Inventor Joseph A. Ehrhard, Jr.

Joseph A. Ehrhard, Jr. 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).

  • Radio-opaque polymeric compositions
    Patent number: 6599448
    Abstract: The present invention provides a radio-opaque composition including a polymer or monomer, wherein the polymer or monomer has a non-leachable radio-opaque moiety. The non-leachable radio-opaque moiety is covalently attached to the polymer or monomer.
    Type: Grant
    Filed: May 10, 2000
    Date of Patent: July 29, 2003
    Assignee: Hydromer, Inc.
    Inventors: Joseph A. Ehrhard, Jr., Patrick Hennessey