Patents by Inventor Jakov Grenader

Jakov Grenader 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).

  • Patent number: 5286277
    Abstract: A steelmaking process is disclosed utilizes solid ferrous metallic material as a substantial part of the metallic charge and uses heat released by combustion of two different types of carbonaceous materials and steel scrap that have been strategically charged inside of at least a partially refractory lined steelmaking vessel. One of the carbonaceous materials contains a high content of volatile hydrocarbons and is primarily responsible for early preheating and partial melting of the solid ferrous material. The second carbonaceous material contains a low content of volatile hydrocarbons and is primarily responsible for providing a reducing capability to the slag, for carburizing the melt and for providing additional heat generated by combustion which is used to enhance heating and melting of solid ferrous materials.
    Type: Grant
    Filed: May 26, 1992
    Date of Patent: February 15, 1994
    Assignee: Zaptech Corporation
    Inventors: Rafik Aizatulov, Grigori Galperine, Gregory Gitman, Jakov Grenader, Boris Kustov