Patents by Inventor Graham W. Erceg

Graham W. Erceg 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).

  • PEEP providing circuit for anesthesia systems
    Patent number: 4245633
    Abstract: A system for conducting gas flow from anesthetic and respirator machines to a medical patient when the patient inhales, and for conducting reverse gas flow, when the patient exhales, through a PEEP valve thereby to provide the positive end-expiratory pressure (PEEP) effect for a medical patient interoperatively.
    Type: Grant
    Filed: January 31, 1979
    Date of Patent: January 20, 1981
    Inventor: Graham W. Erceg