Patents by Inventor Ralf Löser

Ralf Löser 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 atomizer
    Patent number: 6402046
    Abstract: An ultrasonic atomizer is provided with an ultrasonic converter (2) with frequency-dependent impedance characteristic. A driver system is provided (1) for generating driver signals for the ultrasound converter (2) such that while the device can be handled in a simple manner, the liquid to be applied is atomized optimally. The driver system (1) is connected such that a frequency set value with minimal driver current is sought immediately after the ultrasonic atomizer is put into operation by varying the frequency of the current signal.
    Type: Grant
    Filed: May 23, 2000
    Date of Patent: June 11, 2002
    Assignee: Drager Medizintechnik GmbH
    Inventor: Ralf Löser