Patents by Inventor Michael S. Dunn

Michael S. Dunn 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).

  • Ventilator circuit and the method for the use thereof
    Patent number: 7849853
    Abstract: A ventilator circuit for use in administering medication to a patient includes a chamber housing defining an interior space and having an input end and an output end and a one-way inhalation valve positioned upstream of the interior space. The one-way inhalation valve is operative to permit a flow of medication into the interior space of the chamber housing. An inhalation conduit communicates with the output end of the chamber and is adapted to transmit the medication to the patient. An exhaust conduit is connected to the inhalation conduit and a one-way exhaust valve is located in the exhaust conduit. The one-way exhaust valve is adapted to prevent a backflow of gas from the exhaust conduit into the inhalation conduit. A method of administering a medication to a patient is also provided.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: December 14, 2010
    Assignee: Trudell Medical International
    Inventors: Jerry R. Grychowski, Martin P. Foley, Michael S. Dunn