Patents by Inventor Roger E. Wood

Roger E. Wood 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).

  • Single needle alternating flow blood pump system
    Patent number: 4063554
    Abstract: A blood pump system, typically employed in dialysis, includes a blood pump for withdrawing blood via a single hypodermic needle and valve means operated in synchronism therewith for returning treated blood via the same hypodermic needle. The operation of the blood pump is cyclically interrupted and the valve means opened for the alternate withdrawal and return of blood.
    Type: Grant
    Filed: April 16, 1976
    Date of Patent: December 20, 1977
    Inventors: Charles B. Willock, Roger E. Wood