Patents by Inventor Richard Thees

Richard Thees 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).

  • Blood pressure measuring device
    Patent number: 4429700
    Abstract: An inflatable blood pressure cuff is pressurized with a vapor which is produced by heating a fluid which has a boiling point between 290.degree. K. and 340.degree. K. with an electric heating element. The heating element may comprise a PTC resistor which is disposed within the fluid. A piezoresistive element may also be disposed in the fluid to detect pressure pulses associated with Korotkoff sound.
    Type: Grant
    Filed: February 2, 1981
    Date of Patent: February 7, 1984
    Assignee: Honeywell B.V.
    Inventors: Richard Thees, Rolf Wilden