Patents by Inventor Gerd Kowalewski

Gerd Kowalewski 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).

  • Electrode for biomedical measurements
    Patent number: 7136690
    Abstract: The invention relates to an electrode for biomedical measurements, in particular for measurements for electrical impedance tomography, which permits measurements with as little interference as possible. The electrodes comprise a contact plate, a line driver with a high-impedance signal input and low-impedance line output and a current source, with a current output and a reference point, whereby the contact plate is connected to the high-impedance signal input of the line driver and to the current output of the current source and the line driver and the current source are arranged in the vicinity of the contact plate.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: November 14, 2006
    Inventors: Thomas Helzel, Fernando Suarez Sipmann, Gerd Kowalewski
  • Electrode for biomedical measurements
    Publication number: 20050020935
    Abstract: The invention relates to an electrode for biomedical measurements, in particular for measurements for electrical impedance tomography, which permits measurements with as little interference as possible. The electrodes comprise a contact plate, a line driver with a high-impedance signal input and low-impedance line output and a current source, with a current output and a reference point, whereby the contact plate is connected to the high-impedance signal input of the line driver and to the current output of the current source and the line driver and the current source are arranged in the vicinity of the contact plate.
    Type: Application
    Filed: May 19, 2004
    Publication date: January 27, 2005
    Inventors: Thomas Helzel, Fernando Suarez Sipmann, Gerd Kowalewski