Patents by Inventor Ralf Wittdorf

Ralf Wittdorf 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).

  • Anti-adherent coating and method for the production thereof
    Patent number: 6478843
    Abstract: An anti-adhesion coating for welding and/or soldering devices and electric contacts for reducing the adhesion of metallic contaminations on their surfaces includes a diamond-like carbon layer.
    Type: Grant
    Filed: January 4, 2001
    Date of Patent: November 12, 2002
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V
    Inventors: Ralf Wittdorf, Jochen Brand