Patents by Inventor Jorma Kemppainen

Jorma Kemppainen 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).

  • Method and device for producing stainless steel
    Patent number: 5514331
    Abstract: The invention relates to a method and device for producing stainless steel, comprising methods for creating a ferroalloy, such as ferrochromium, and for further processing the alloy in order to produce a desired stainless steel. According to the invention, the melt obtained from the ferro alloy production unit (1) is transferred at least partly to a ferroalloy processing unit (2) arranged in between the ferroalloy production unit (1) and the stainless steel production unit (5); in the said processing unit (2), the composition of the ferroalloy is adjusted to be suitable for the production of stainless steel.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: May 7, 1996
    Assignee: Outokumpu Steel Oy
    Inventors: Matti Honkaniemi, Veikko Juntunen, Jorma Kemppainen, Risto Pellikka, Eero Rattya