Patents by Inventor Hans Poland

Hans Poland 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).

  • Ultrasonic manometry process in a fluid by means of microbubbles
    Patent number: 5195520
    Abstract: The invention relates to an ultrasonic manometry process in a fluid containing stabilized micro bubbles in an ensemble, wherein ultrasonic impulses are radiated into the fluid and brought to interact with the micro bubbles. The amplitude and/or frequency alterations in the ultrasonic scatter signals are recorded and evaluated compared with the ultrasonic impulses radiated in and/or previously recieved. Preparations for measuring blood pressure which can be used with the manometry process are described.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: March 23, 1993
    Assignee: Schering Aktiengesellschaft
    Inventors: Reinhard Schlief, Hans Poland