Patents by Inventor David Ullmann

David Ullmann 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).

  • HIGH-VOLTAGE BATTERY FOR MOTOR VEHICLE
    Publication number: 20260038935
    Abstract: A high-voltage battery includes a plurality of cells and at least one crushing pad arranged between the plurality of cells. The crushing pad is composed of an aluminum composite foil and includes a plurality of conduits formed in the aluminum composite foil. The crushing pad is structured so that channels for guiding coolant between adjacent cells are formed on both sides of the crushing pad. The channels extend along the sealing seams and between the adjacent conduits. A motor vehicle may include the high-voltage battery.
    Type: Application
    Filed: July 29, 2025
    Publication date: February 5, 2026
    Applicant: Dr. Ing. h.c. F. Porsche Aktiengesellschaft
    Inventors: Christian Porstendörfer, David Ullmann, David Schmid
  • Hybrid drive unit and method for its operation
    Patent number: 8622861
    Abstract: The invention relates to a hybrid drive unit, in which for the most optimum possible synergetic use of the combustion engine drive and electromotive drive, a multi-speed clutch- and gear assembly is provided, in which both the combustion engine drive power and also the electromotive drive power is introduced into an input member of the clutch- and gear assembly. Hereby, numerous drive variants are made possible, which allow the drive machines to cooperate with each other according to requirements. The invention additionally relates to the method by which such a drive unit is operated.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: January 7, 2014
    Assignee: Getrag Getriebe und Zahnradfabrik Hermann GmbH & Cie KG
    Inventors: Hans-Peter Nett, Ingo Steinberg, Lutz Kather, Wolfgang Brings, Christoph Göttert, Christoph Grave, Jan Haupt, David Ullmann
  • HYBRID DRIVE UNIT AND METHOD FOR ITS OPERATION
    Publication number: 20110312460
    Abstract: The invention relates to a hybrid drive unit, in which for the most optimum possible synergetic use of the combustion engine drive and electromotive drive, a multi-speed clutch- and gear assembly is provided, in which both the combustion engine drive power and also the electromotive drive power is introduced into an input member of the clutch- and gear assembly. Hereby, numerous drive variants are made possible, which allow the drive machines to cooperate with each other according to requirements. The invention additionally relates to the method by which such a drive unit is operated.
    Type: Application
    Filed: December 1, 2009
    Publication date: December 22, 2011
    Inventors: Hans-Peter Nett, Ingo Steinberg, Lutz Kather, Wolfgang Brings, Christoph Göttert, Christoph Grave, Jan Haupt, David Ullmann