Patents by Inventor Gerhardus Mulder

Gerhardus Mulder 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).

  • Patent number: 5944914
    Abstract: The invention relates to an aluminothermic mixture consisting of a finely particulate base portion of iron oxides and aluminum as well as metallic additives, wherein a master alloy, namely a ferrochromium alloy consisting of (in % by weight)C: 0.1 to 20Si: 2 to 40Cr: 5 to 80and iron with impurities resulting from manufacture and, if appropriate, other alloying elements, is added in a quantity of from 5 to 50% by weight, relative to the base portion, as metallic additive.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: August 31, 1999
    Assignee: Elektro-Thermit GmbH
    Inventors: Georg Frommeyer, Michael Kulse, Gerhardus Mulder, Michael Steinhorst