Patents by Inventor Gerd Hieber

Gerd Hieber 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).

  • Agent for desulphurizing iron melts, a process for the production thereof and a process for desulphurizing iron melts with the use of said agent
    Patent number: 4943317
    Abstract: The present invention provides an agent for desulphurizing iron containing calcium carbide and a metallic component, wherein the calcium carbide and the metallic component are present in such a form that the bulk densities and grain sizes thereof lie in the same range.The present invention also provides a process for producing this agent, as well as a process for desulphurizing iron using this agent.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: July 24, 1990
    Assignee: SKW Trostberg Aktiengesellschaft
    Inventors: Helmut Lischka, Werner Gmohling, Gerd Hieber