Patents by Inventor Karin Witting

Karin Witting 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).

  • Laminated material for electrical contacts and method of manufacturing same
    Patent number: 4680438
    Abstract: Disclosed is a laminated material for electrical contacts having a support of base metal or of a base metal alloy, a contact layer of titanium nitride which in turn is covered with a mixed layer of titanium nitride and at least one noble metal. Also disclosed is a method for making the laminated material in a single step in a vacuum apparatus with reactive formation of the titanium nitride.
    Type: Grant
    Filed: February 6, 1986
    Date of Patent: July 14, 1987
    Assignee: W. C. Heraeus GmbH
    Inventors: Karin Witting, Dieter Poss, Rudolf Schnabl