Patents by Inventor Marcus Leubner

Marcus Leubner 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).

  • Metalworking fluid containing a branched alcohol propoxylate
    Patent number: 11795414
    Abstract: The present invention relates to a method of processing a workpiece comprising contacting a tool and a workpiece to effect a change in the shape of the workpiece, and applying a metalworking fluid to a surface area where the tool and the workpiece are in contact, where the metalworking fluid contains a propoxylate of the formula R—O—(C3H6O)n—H, where R is a branched C6 to C20 alkyl and n is from 3 to 30. The invention further relates to the metalworking fluid, and to a use of the propoxylate as additive in metalworking fluids.
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: October 24, 2023
    Inventors: Frank Rittig, Marcel Harhausen, Thorsten Schoeppe, Marcus Leubner, Lu Yi Zhang, Markus Hansch, Kian Molawi, Jan Strittmatter
  • METALWORKING FLUID CONTAINING A BRANCHED ALCOHOL PROPOXYLATE
    Publication number: 20220162514
    Abstract: The present invention relates to a method of processing a workpiece comprising contacting a tool and a workpiece to effect a change in the shape of the workpiece, and applying a metalworking fluid to a surface area where the tool and the workpiece are in contact, where the metalworking fluid contains a propoxylate of the formula R—O—(C3H6O)n—H, where R is a branched C6 to C20 alkyl and n is from 3 to 30. The invention further relates to the metalworking fluid, and to a use of the propoxylate as additive in metalworking fluids.
    Type: Application
    Filed: April 1, 2020
    Publication date: May 26, 2022
    Inventors: Frank RITTIG, Marcel HARHAUSEN, Thorsten SCHOEPPE, Marcus LEUBNER, Lu Yi ZHANG, Markus HANSCH, Kian MOLAWI, Jan STRITTMATTER
  • Derived timber products consisting of wood parts glued by means of polyisocyanates
    Publication number: 20040071981
    Abstract: Woodbase materials comprise wood pieces glued using an adhesive composition comprising
    Type: Application
    Filed: July 3, 2003
    Publication date: April 15, 2004
    Inventors: Karl Haberle, Marcus Leubner, Eberhard Pfutze, Michael Schmidt