Patents by Inventor MICHAEL GRABINGER

MICHAEL GRABINGER 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).

  • Piston for an internal combustion engine
    Patent number: 12442348
    Abstract: A piston for an internal combustion engine includes at least one annular groove in the piston material, preferably the first annular groove closest to the piston crown, which is configured such that, when viewed in cross-section, at least one elliptic curve and/or convex cubic spline is present between a lower flank of the annular groove and an upper flank of the annular groove.
    Type: Grant
    Filed: July 14, 2022
    Date of Patent: October 14, 2025
    Assignee: FEDERAL-MOGUL NURNBERG GMBH
    Inventors: Rainer Weiss, Jens Lehmann, Michael Grabinger, Christian Lindner, Michael Scherer, Ralf Meske, Sven Ungermann
  • PISTON FOR AN INTERNAL COMBUSTION ENGINE
    Publication number: 20240376849
    Abstract: A piston for an internal combustion engine includes at least one annular groove in the piston material, preferably the first annular groove closest to the piston crown, which is configured such that, when viewed in cross-section, at least one elliptic curve and/or convex cubic spline is present between a lower flank of the annular groove and an upper flank of the annular groove.
    Type: Application
    Filed: July 14, 2022
    Publication date: November 14, 2024
    Inventors: RAINER WEISS, JENS LEHMANN, MICHAEL GRABINGER, CHRISTIAN LINDNER, MICHAEL SCHERER, RALF MESKE, SVEN UNGERMANN