Patents by Inventor Billy H. Hannaford

Billy H. Hannaford 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).

  • Dip formed catheter and assembly
    Patent number: 4874373
    Abstract: A catheter constructed of a polymeric material that is produced by dip coating over a mandrel or needle, is disclosed. The catheter which is formed is then removed by expansion upon contact with a liquid containing water, or by applied manual pressure. The integrally formed assembly has fewer component parts and has a more accurately shaped catheter tip and tapered end.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: October 17, 1989
    Inventors: Ronald B. Luther, Billy H. Hannaford