Patents by Inventor John L. Hahn

John L. 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).

  • Patent number: 5129889
    Abstract: A sterile catheter formed of a biodegradable, biocompatible material for use in a continuous epidural anesthesia procedure. The epidural catheter has an effective lumen size and includes a flexible tube molded from a synthetic polymer which is absorbable in living tissue. The catheter is characterized as being dimensionally and structurally stable within the body for the duration of surgery and into the postoperative period and absorbable without causing any unfavorable tissue reaction.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: July 14, 1992
    Inventors: John L. Hahn, Philip A. Pappas