Patents by Inventor Johann Leye

Johann Leye 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).

  • Electrode composition
    Patent number: 10560987
    Abstract: The present invention relates to a self-calcining electrode material for electric arc furnaces, containing one or more carbon components and a binder, wherein the binder is hard bitumen and having a needle penetration at 25° C. according to DIN EN 1426 of <50 [per 0.1 mm] and/or a softening point (ring and ball) according to DIN EN 1 427 of at least 65° C. and/or having a density at 25° C. according to DIN EN 52004 of 0.5 to 2 g/cm3, wherein the electrode material has a PAH content of <500 ppm. The hard bitumen is preferably derived by flash distillation from soft and medium-hard bitumen types and has a high sulfur content.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: February 11, 2020
    Assignee: RHEINFELDEN CARBON GMBH & CO. KG
    Inventors: Alois J. Franke, Robert Becker, Johann Leye
  • Electrode Composition
    Publication number: 20190215918
    Abstract: The present invention relates to a self-calcining electrode material for electric arc furnaces, containing one or more carbon components and a binder, wherein the binder is hard bitumen and having a needle penetration at 25° C. according to DIN EN 1426 of <50 [per 0.1 mm] and/or a softening point (ring and ball) according to DIN EN 1 427 of at least 65° C. and/or having a density at 25° C. according to DIN EN 52004 of 0.5 to 2 g/cm3, wherein the electrode material has a PAH content of <500 ppm. The hard bitumen is preferably derived by flash distillation from soft and medium-hard bitumen types and has a high sulfur content.
    Type: Application
    Filed: March 30, 2017
    Publication date: July 11, 2019
    Inventors: Alois J. Franke, Robert Becker, Johann Leye