Patents by Inventor Lars Torsten Ericson

Lars Torsten Ericson 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 of making material for hard facing
    Patent number: 3972108
    Abstract: For producing a welding electrode for hard-facing, a carbide or sigma-phase pre-alloy is very finely subdivided, mixed with carbon and/or cobalt, compressed to a coherent mass, heat-treated out of access to air and extruded to wire or strip.
    Type: Grant
    Filed: August 26, 1975
    Date of Patent: August 3, 1976
    Assignee: Sandvik Aktiebolag
    Inventors: Lars Torsten Ericson, Lars Gosta Ljungstrom, Gustaf Henrik Widmark