Patents by Inventor Arne Seltveit

Arne Seltveit 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).

  • Diffusion barrier for aluminium electrolysis furnaces
    Patent number: 4536273
    Abstract: Diffusion barrier for electrolysis furnaces for the preparation of aluminium by electrolysis of alumina dissolved in a fluoride melt. The diffusion barrier comprises a material which reacts with sodium fluoride to form compounds which are solid at the operation temperature of the furnace.
    Type: Grant
    Filed: October 19, 1983
    Date of Patent: August 20, 1985
    Assignee: Sintef
    Inventor: Arne Seltveit