Patents by Inventor Stefan UNGAR

Stefan UNGAR 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).

  • Coating for metal components, method for coating a metal component, piston for internal combustion engines and motor vehicle
    Patent number: 10458361
    Abstract: An abrasion-resistant and friction-reduced coating for metal components is provided. The coating includes an inner layer, an intermediate layer and an outer layer. The inner layer is intended to be applied to the metal component and has at least one layer selected from: a metal layer, a metal-carbide layer, a metal-nitride layer, a metalcarbide- nitride layer and a metal-containing hydrocarbon layer. The intermediate layer includes at least one layer of amorphous carbon and the outer layer includes a W—C:H layer or a a-C:H* layer. A maximum layer thickness of the coating is at most 5 ?m. The coating is suitable in particular as a piston coating for use in internal combustion engines.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: October 29, 2019
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Andrea Procopio, Nigel Stothard, Stefan Ungar
  • Coating for Metal Components, Method for Coating a Metal Component, Piston for Internal Combustion Engines and Motor Vehicle
    Publication number: 20170122249
    Abstract: An abrasion-resistant and friction-reduced coating for metal components is provided. The coating includes an inner layer, an intermediate layer and an outer layer. The inner layer is intended to be applied to the metal component and has at least one layer selected from: a metal layer, a metal-carbide layer, a metal-nitride layer, a metalcarbide- nitride layer and a metal-containing hydrocarbon layer. The intermediate layer includes at least one layer of amorphous carbon and the outer layer includes a W—C:H layer or a a-C:H* layer. A maximum layer thickness of the coating is at most 5 ?m. The coating is suitable in particular as a piston coating for use in internal combustion engines.
    Type: Application
    Filed: January 11, 2017
    Publication date: May 4, 2017
    Inventors: Andrea PROCOPIO, Nigel STOTHARD, Stefan UNGAR