Patents by Inventor Leonhard Zeipper

Leonhard Zeipper 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).

  • CAST IRON ALLOY WITH GOOD OXIDATION RESISTANCE AT HIGH TEMPERATURES
    Publication number: 20100178193
    Abstract: A cast iron alloy for cast iron products characterized by a high oxidation stability at surface temperatures of 800° C. to 950° C., comprising the chemical components 2.8 to 3.6% C by weight; 2.0 to 3.0% Si by weight; 2.5 to 4.3% Al by weight; up to 1.0% Ni by weight; up to 0.8% Mo by weight; up to 0.3% Mn by weight; 0.002 to 0.1% Ce by weight; 0.023 to 0.06% Mg by weight; up to 0.01% S by weight, residual Fe, and the usual impurities.
    Type: Application
    Filed: May 10, 2007
    Publication date: July 15, 2010
    Applicant: GEORG FISCHER EISENGUSS GMBH
    Inventor: Leonhard Zeipper