Patents by Inventor Shilowbhadra Banerjee

Shilowbhadra Banerjee 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: 6424671
    Abstract: A process for making steel in an electric arc furnace includes providing a molten charge which is a melt composed of a high carbon ferrous metal in the electric arc furnace by one of preparing the melt in the furnace or introducing the melt into the furnace, the high carbon ferrous metal being composed of less than 3% carbon, less than 0.2% silicon, and less than 0.2% manganese, and the melt having a temperature of at least 1375° C.; adding to the molten charge provided in the furnace a solid metallic charge composed of least one material selected from the group consisting of scrap steel, hot briquetted iron, direct reduced iron, and iron ore to provide a charge mixture; refining the charge mixture by melting in the absence of gaseous oxygen to provide a molten steel; and superheating, finishing and tapping the molten steel into a ladle for subsequent casting thereof.
    Type: Grant
    Filed: December 5, 2000
    Date of Patent: July 23, 2002
    Assignee: National Research Development Corporation
    Inventor: Shilowbhadra Banerjee
  • Patent number: 6063157
    Abstract: A process and an apparatus for removal of silicon, manganese, carbon and sulphur in a single reaction vessel from molten high carbon ferrous metal by conducting the highly reducing and highly oxidizing reactions at two different locations within the same reaction vessel. The removal of sulphur is effected at the bottom of the vessel, whereas the removal of manganese silicon and carbon is effected at the top layer of the molten layer of the molten metal where slag is present.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: May 16, 2000
    Inventors: Shilowbhadra Banerjee, Kedar Nath Pandey, Bharat Chandra Roy, Om Prakash Sharma, Asim Kumar Sahu
  • Patent number: D891361
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: July 28, 2020
    Assignee: SYS3E TECHNOLOGIES PRIVATE LIMITED
    Inventors: Sahil Kala, Shilowbhadra Banerjee, Sudhir Muthyala