Patents by Inventor Per KROGH

Per KROGH 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).

  • Drill pipe cleaning systems and methods
    Patent number: 12516576
    Abstract: A drill pipe cleaning system is configured for cleaning external surfaces of sections of a drill pipe to remove earth, drilling mud, and other solid and/or liquid compounds while a drill pipe is being handled in a wellbore or on a drilling rig. The drill pipe cleaning system includes a cleaning ring provided with a ring opening, for receiving the drill pipe, and a number of cleaning belts arranged to engage with and scrape the outer surface of the drill pipe.
    Type: Grant
    Filed: April 7, 2023
    Date of Patent: January 6, 2026
    Assignee: RIGTOOLS ApS
    Inventor: Per Krogh
  • Ferromagnetic material removing device and method for removing ferromagnetic material from a fluid
    Patent number: 12251711
    Abstract: A ferromagnetic material removing device for removing ferromagnetic material from a fluid containing ferromagnetic material is disclosed. The device comprises at least one carrier encasing a plurality of permanent magnets arranged in an inner space of the carrier. The outside of the carrier is configured to collect ferromagnetic material that is attracted by the magnets. The carrier is ring-shaped and rotatably mounted and the device comprises a removing portion arranged and configured to remove the ferromagnetic material from the outside of the carrier and a driving assembly arranged to rotate the carrier.
    Type: Grant
    Filed: April 4, 2024
    Date of Patent: March 18, 2025
    Assignee: RIGTOOLS ApS
    Inventor: Per Krogh
  • Ferromagnetic Material Removing Device and Method for Removing Ferromagnetic Material from a Fluid
    Publication number: 20240246091
    Abstract: A ferromagnetic material removing device for removing ferromagnetic material from a fluid containing ferromagnetic material is disclosed. The device comprises at least one carrier encasing a plurality of permanent magnets arranged in an inner space of the carrier. The outside of the carrier is configured to collect ferromagnetic material that is attracted by the magnets. The carrier is ring-shaped and rotatably mounted and the device comprises a removing portion arranged and configured to remove the ferromagnetic material from the outside of the carrier and a driving assembly arranged to rotate the carrier.
    Type: Application
    Filed: April 4, 2024
    Publication date: July 25, 2024
    Inventor: Per KROGH
  • Drill Pipe Cleaning Systems and Methods
    Publication number: 20230323736
    Abstract: A drill pipe cleaning system is configured for cleaning external surfaces of sections of a drill pipe to remove earth, drilling mud, and other solid and/or liquid compounds while a drill pipe is being handled in a wellbore or on a drilling rig. The drill pipe cleaning system includes a cleaning ring provided with a ring opening, for receiving the drill pipe, and a number of cleaning belts arranged to engage with and scrape the outer surface of the drill pipe.
    Type: Application
    Filed: April 7, 2023
    Publication date: October 12, 2023
    Inventor: Per KROGH