Patents by Inventor Martina Stölzel

Martina Stölzel 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).

  • Metallic object with a thin polyphase oxide coating and process for the manufacture thereof
    Patent number: 6524718
    Abstract: A metallic object, having a metallic substrate of a valve metal or a valve metal alloy inclusive of intermetallic phases, and a thin polyphase oxide coating, is disclosed. The polyphase oxide coating has a metal oxide phase and at least one other organic and/or inorganic phase. The polyphase oxide coating is produced by bringing the metallic substrate into contact with an organic and/or inorganic component to be integrated into the polyphase oxide coating such that the inorganic and/or organic phases are present at or in the direct vicinity of the substrate surface and by simultaneously or subsequently anodically polarizing the substrate material in an electrolytic solution.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: February 25, 2003
    Assignee: Merck Patent GmbH
    Inventors: Hartmut Worch, Michael Thieme, Dieter Scharnweber, Sophie Rössler, Martina Stölzel