Patents by Inventor Michael Grenfell Daniell

Michael Grenfell Daniell 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).

  • Humidifier sleep apnea treatment apparatus
    Patent number: 6050260
    Abstract: Apparatus and method of treating OSA (Obstructve Sleep Apnea) are disclosed wherein a Positive Airway Pressure device is utilized to provide a gases supply which is then passed through a humidifier. As the amount of water vapor generated by the humidifier is very low at start up (typically the humidifier comprises a water container on a heating plate) the pressure of gases supplied by the apparatus are controlled so that the humidity of the gases supplied to a patient are always at the maximum of the capability of the humidifier to humidify that air flow.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: April 18, 2000
    Assignee: Fisher & Paykel Limited
    Inventors: Michael Grenfell Daniell, Lewis George Gradon