Patents by Inventor Thomas R. Kessler

Thomas R. Kessler 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).

  • Patent number: 4184497
    Abstract: An implantable catheter for subcutaneous placement defining a tubular member which carries an enlarged, hollow, needle-pierceable member on one end thereof. The enlarged hollow member is implanted under the skin. The catheter defines a pair of angled turns, each of the angled turns occupying a plane which defines approximately a 90 degree angle to the plane of the other angle. This permits the enlarged portion of the catheter to be horizontally positioned subcutaneously, relative to an erect patient, while the end of the tubular catheter extends to its desired location in the peritoneal cavity.
    Type: Grant
    Filed: August 26, 1977
    Date of Patent: January 22, 1980
    Assignee: University of Utah
    Inventors: Willem J. Kolff, Thomas R. Kessler