Patents by Inventor Gerhard Thurn

Gerhard Thurn 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).

  • Optoelectrical measuring system and apparatus
    Patent number: 4859062
    Abstract: The invention relates to measuring the surface roughness of a sample. A beam of light is directed onto the surface and the scattered light distribution is measured using a detector array. Either the average deviation or the second moment of the scattered light distribution is then determined, which are measures of the surface roughness.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: August 22, 1989
    Inventors: Gerhard Thurn, Theodor Gast