Patents by Inventor Kaare W. N. Berg

Kaare W. N. Berg 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).

  • Machine for rock removal and soil cultivation
    Patent number: 4005755
    Abstract: This invention is concerning a machine for rock removal and soil cultivation of newly broken or established farming areas. The machine picks up soil and rocks to a significant depth, and by a mixing and grinding process, breaks up sod, roots, and lumps of soil and by a classification process returns the size reduced material and small rocks to the ground, and retains the larger rocks.
    Type: Grant
    Filed: December 9, 1974
    Date of Patent: February 1, 1977
    Inventors: Even A. Bakke, Kaare W. N. Berg