Patents by Inventor Ingvar Oderstig

Ingvar Oderstig 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).

  • Electrical heating element
    Patent number: 4376245
    Abstract: An electrical tubular element with an outer, metallic casing (1) surrounding a resistor element (2) of a Fe-Cr-Al alloy embedded in an insulating material (3), is given improved durability by adding to the resistor alloy Y, Hf, Sc or one or more lanthanides in an amount of 0.01-1 percent by weight.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: March 8, 1983
    Assignee: Bulten-Kanthal AB
    Inventors: Nils Lindskog, Ingvar Oderstig, Lars Berg