Patents by Inventor Gerald Lorenz

Gerald Lorenz 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).

  • Electrical resistor material, resistor made therefrom and method of making the same
    Patent number: 4651126
    Abstract: An electrical resistor of resistivity of less than about 600 ohms per square and with a temperature coefficient of resistance within the range of .+-.200 ppm/.degree.C. comprises an insulating substrate, electrically conductive terminations on a surface of the substrate, and a layer of resistor material on the surface of the substrate and in contact with the terminations. The resistor material comprises from about 25 to about 35% by weight glass and from about 50% to about 75% by weight conductive particles. Preferably the conductive particles consisting essential of tin oxide and at least about 0.2% by weight of ruthenium containing material, expressed as RuO.sub.2. The mass ratio of ruthenium containing material (as RuO.sub.2) to tin oxide is less than 7:93.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: March 17, 1987
    Inventors: Shailendra Kumar, Gerald Lorenz, Nellie L. Cabato