Patents by Inventor Holger Wirsing

Holger Wirsing 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).

  • Refractory shaped body with increased alkali resistance
    Publication number: 20020119885
    Abstract: The invention relates to a batch, in particular for the production of refractory shaped bodies, which includes a refractory, metal oxide main component containing 40 to 60% by weight of Al2O3, a phosphate bond and finely particulate SiC with a grain size of <0.2 mm, and to a process for its production.
    Type: Application
    Filed: February 26, 2002
    Publication date: August 29, 2002
    Inventors: Heinrich Liever, Hans-Jurgen Klischat, Holger Wirsing