Patents by Inventor Stig Erick Svennberg

Stig Erick Svennberg 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).

  • Asphalt compositions having improved adhesion to aggregate
    Patent number: 4038102
    Abstract: Asphalt compositions are provided having improved adhesion to aggregate, comprising an alkyl oxyalkylene amine and, optionally, an alkanolamine.
    Type: Grant
    Filed: June 13, 1975
    Date of Patent: July 26, 1977
    Assignee: Mo Och Domsjo
    Inventors: Martin Edvin Hellsten, Anders William Klingberg, Stig Erick Svennberg