Patents by Inventor Hermann Gran

Hermann Gran 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 for the production of graphite bodies
    Patent number: 10131997
    Abstract: The present invention relates to a method for production of graphite bodies. Carbon bodies are formed from a mixture of electric calcined coke particles calcined at a temperature between 1200 and 3000° C. and a binder where the coke particles have sulphur-and nitrogen content varying between 0 and 1.5% by weight and where the coke particles have an average sulphur content less than 0.6% by weight and a nitrogen content of less than 0.6% by weight, baking of the carbon bodies at a temperature between 700 and 1400° C. and graphitizing of the baked carbon bodies at a temperature above 2300° C.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: November 20, 2018
    Assignee: ELKEM CARBON AS
    Inventors: Johan Arnold Johansen, Sten Yngve Larsen, Hermann Gran
  • METHOD FOR THE PRODUCTION OF GRAPHITE BODIES
    Publication number: 20130004410
    Abstract: The present invention relates to a method for production of graphite bodies. Carbon bodies are formed from a mixture of electric calcined coke particles calcined at a temperature between 1200 and 3000° C. and a binder where the coke particles have sulphur-and nitrogen content varying between 0 and 1.5% by weight and where the coke particles have an average sulphur content less than 0.6% by weight and a nitrogen content of less than 0.6% by weight, baking of the carbon bodies at a temperature between 700 and 1400° C. and graphitizing of the baked carbon bodies at a temperature above 2300° C.
    Type: Application
    Filed: January 18, 2011
    Publication date: January 3, 2013
    Applicant: ELKEM CARBON AS
    Inventors: Johan Arnold Johansen, Sten Yngve Larsen, Hermann Gran