Patents by Inventor Wilfried Klemmer

Wilfried Klemmer 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).

  • Method of determining mining progress in open cast mining by means of satellite geodesy
    Patent number: 5144317
    Abstract: In a method of determining mining progress and the mined masses in open cast mining the position and orientation of the extraction device such as a bucket wheel of a travelling excavator are ascertained by means of satellite geodesy using a receiver in the vicinity of the bucket wheel and a further receiver at another location on the excavator.
    Type: Grant
    Filed: March 27, 1991
    Date of Patent: September 1, 1992
    Assignee: Rheinbraun Aktiengesellschaft
    Inventors: Herbert Duddek, Wilfried Klemmer, Herbert Koeppen