Patents by Inventor Bernhard Kleffner

Bernhard Kleffner 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).

  • Device and method for selective exposure of a biological sample to sound waves
    Patent number: 6699711
    Abstract: A device and method are disclosed for selective exposure of a biological sample, preferably biological cell material, to sound waves. The device is provided with a receptacle for the sample, in which the biological sample is in a suspended form, and having an electroacoustic transducer device, which generates sound waves and which is disposed outside the receptacle of the sample in such a manner that sound-wave coupling into said sample occurs through the wall of said receptacle.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: March 2, 2004
    Assignee: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
    Inventors: Thomas Hahn, Bernhard Kleffner, Hans Ruf