Patents by Inventor Thomas K. Tie

Thomas K. Tie 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).

  • Centrifugal separation of blood
    Patent number: 4850995
    Abstract: Returning red blood cells to a patient after a centrifuge separation procedure by connecting an inflow line of a separation channel to an outflow line to provide a closed loop and recirculating liquid through it to remove blood cells. Also disclosed is pulling more liquid out of a flexible separation channel than permitted into it in order to reduce the volume of liquid to be used in returning cells to the patient.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: July 25, 1989
    Assignee: Cobe Laboratories, Inc.
    Inventors: Thomas K. Tie, Mark A. Holmes, Anne W. Rank