Patents by Inventor John A. Culver, deceased

John A. Culver, deceased 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).

  • Moisture resistant airway adapter for monitoring constituent gases
    Patent number: 6044843
    Abstract: An airway adapter comprising a tubular portion having opposing windows in a predetermined spaced configuration. The windows have at least one surface which interacts with moisture condensed thereon from respiratory gases so as to reduce the interference of such condensation with the measurement of constituent gases by a gas analyzer. The surface of the windows can be hydrophobic, hydrophilic, or a combination thereof.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: April 4, 2000
    Assignee: Nellcor Puritan Bennett Incorporated
    Inventors: Michael P. O'Neil, Ross Flewelling, John A. Culver, deceased