Patents by Inventor Maria Bijlenga

Maria Bijlenga 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).

  • Device for current limitation and protection against short-circuit currents in an electric installation
    Patent number: 5896264
    Abstract: A current-limiting device comprises at least one polymer-based electrically conducting body with two contact surfaces and at least two electrodes. Close to a first one of the two contact surfaces of the polymer-based electrically conducting body, a surface layer is arranged. The resistivity of the surface layer is reduced relative to the resistivity of the bulk of the polymer body, and at the same time at least the second contact surface of the body is adapted to make free contact with at least one of the electrodes or other electrically conducting body.
    Type: Grant
    Filed: October 16, 1997
    Date of Patent: April 20, 1999
    Assignee: ABB Research Ltd.
    Inventors: Maria Bijlenga, Lars Banghammar, Tomas Hansson, Ola Jeppsson