Patents by Inventor Hans P. Langbakk

Hans P. Langbakk 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).

  • Agricultural implement having a set of ground working tools
    Patent number: 5868207
    Abstract: An agricultural implement is towed behind a tractor or other propelling vehicle and is mounted on a lifting mechanism at the rear of such vehicle so that the forward part of the implement is supported by such mechanism. In one embodiment the agricultural implement includes a seed drill that introduces seeds into the ground at a substantially constant depth below ground level, despite possible undulation in the surface profile of the field which is being seeded.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: February 9, 1999
    Assignee: Kverneland Klepp AS
    Inventors: Hans P. Langbakk, Torstein Salte