Patents by Inventor David M. Trueblood

David M. Trueblood 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).

  • Gas monitor having trend indicators
    Patent number: 4697450
    Abstract: An improved device for determining the trend of the partial pressure of a gas, such as oxygen or carbon dioxide, which diffuses outwardly through a patient's skin. The device, such as a cutaneous gas monitor, generates over time a series of partial pressure input values that are compared to one another for determining a trend in the partial pressure. This trend is communicated to the operator of the device.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: October 6, 1987
    Assignee: Sensormedics Corporation
    Inventors: Thomas E. Bachman, Larry S. McDavid, David M. Trueblood