Patents by Inventor Howat L. William

Howat L. William 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).

  • Catheter and method for infusion of aerated liquid
    Patent number: 5211627
    Abstract: A catheter having a lumen for delivering air and a lumen for delivering fluid, such as water. Each lumen extends from the proximal end to the distal end of the catheter. An opening is formed between the air and fluid lumens adjacent the distal end to allow communication between the lumens to allow mixing of the air and fluid. A syringe having a fluid barrel and an air barrel is connected to the catheter to communicate with the respective fluid and air lumens.
    Type: Grant
    Filed: February 12, 1991
    Date of Patent: May 18, 1993
    Assignee: C. R. Bard, Inc.
    Inventor: Howat L. William