Patents by Inventor Jochem Richter

Jochem Richter 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).

  • Process for the introduction of nitrogen into cast iron
    Patent number: 4970051
    Abstract: The present invention provides an agent for the introduction of nitrogen into cast iron, wherein it contains or consists of at least 50% by weight of at least one nitrogen-containing compound with an N--C--N structure and/or a mixture of calcium cyanamide with nitrides of silicon, ferrosilicon, manganese and chromium.The present invention also provides a process for the introduction of nitrogen into cast iron using this agent.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: November 13, 1990
    Assignees: SKW Trostberg Aktiengesellschaft, Halbergerhuette GmbH
    Inventors: Friedrich Wolfsgruber, Hartmut Meyer-Grunow, Detlef Missol, Jochem Richter, Julius Veit