Patents by Inventor Silvia Kremshofer

Silvia Kremshofer 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).

  • Filtering cartridge
    Patent number: 5868810
    Abstract: A filtering cartridge made of compacted and sintered particles is manufactured from a powder consisting of chromium or a chromium alloy with at least 70% Cr by weight and a particle size of the chromium particles between 160 .mu.m and 500 .mu.m. Filtering cartridges of this type can be used advantageously, particularly in gas clarification for energy production by biomass gasification or coal gasification, in cracking processes in the petroleum industry, as well as for the production of melamine resin.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: February 9, 1999
    Assignee: Schwarzkopf Technologies Corporation
    Inventors: Norbert Dreer, Robert Grill, Silvia Kremshofer