Patents by Inventor Urban Westin

Urban Westin 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).

  • Manufacturing moulds or mould cores
    Patent number: 4174225
    Abstract: A method for manufacturing casting molds or mold cores comprising shaping an aqueous mixture of sand, binder, a hydrocarbon resinous material and a porous, heat-resistant inorganic material.
    Type: Grant
    Filed: April 11, 1977
    Date of Patent: November 13, 1979
    Assignees: AB Nynas-Petroleum, AB Westin and Backlund
    Inventors: Bert K. G. Lundgren, Urban Westin