Patents by Inventor Richard B. Hartnett

Richard B. Hartnett 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).

  • Anesthesia tube assembly
    Patent number: 5894839
    Abstract: An improved unilimb anesthesia tube assembly includes a rotatable end fitting at the patient end and inner and outer cylinders to which inner and outer unilimb tubes are secured with gas-tight seals. The invention also includes a tool and method for checking the gas-tight seals of the assembly.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: April 20, 1999
    Assignee: PAR Medical, Inc.
    Inventors: Terry G. Rosenkoetter, Robert D. Richmond, Richard B. Hartnett
  • Anesthesia tube assembly
    Patent number: 5722391
    Abstract: An improved unilimb anesthesia tube assembly includes a rotatable end fitting at the patient end and inner and outer cylinders to which inner and outer unilimb tubes are secured with gas-tight seals. The invention also includes a tool and method for checking the gas-tight seals of the assembly.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: March 3, 1998
    Assignee: PAR Medical, Inc.
    Inventors: Terry G. Rosenkoetter, Robert D. Richmond, Richard B. Hartnett