Patents by Inventor Lee D. Johnson

Lee D. Johnson 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).

  • Disinfecting system for hemodialysis apparatus
    Patent number: 6027469
    Abstract: A colloidal silver solution is introduced as a disinfectant to the blood and dialysate sides of a hemodialysis system at the conclusion of a dialysis session and is not flushed from the system until another dialysis is to be performed.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: February 22, 2000
    Inventor: Lee D. Johnson