Patents by Inventor Per-Erik LILIENBERG

Per-Erik LILIENBERG 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).

  • Grinding/milling machine for levelling of horizontal surfaces
    Patent number: 9770801
    Abstract: A grinding/milling machine for levelling of horizontal surfaces, having a mobile drive unit, including a vertically pivotable boom suspended from the mobile unit, a rigid girder pivotally fastened at the end of the boom and two motorized machining and/or milling machines, each being arranged at a respective opposite end of the rigid girder.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: September 26, 2017
    Inventor: Per-Erik Lilienberg
  • GRINDING/MILLING MACHINE FOR LEVELLING OF HORIZONTAL SURFACES
    Publication number: 20170043445
    Abstract: A grinding/milling machine for levelling of horizontal surfaces, having a mobile drive unit, including a vertically pivotable boom suspended from the mobile unit, a rigid girder pivotally fastened at the end of the boom and two motorized machining and/or milling machines, each being arranged at a respective opposite end of the rigid girder.
    Type: Application
    Filed: April 27, 2015
    Publication date: February 16, 2017
    Inventor: Per-Erik LILIENBERG