Patents by Inventor Joergen M. Berth

Joergen M. Berth 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).

  • Heat recoverable article
    Patent number: 4990379
    Abstract: A tubular article comprises an electrically conductive polymeric material. The article increases in wall thickness on recovery. It can be used for example as a duct seal or as an internal coupler or seal for hollow conduits such as pipes. The article may have plain or convoluted walls.
    Type: Grant
    Filed: September 8, 1988
    Date of Patent: February 5, 1991
    Assignee: Raychem Corporation
    Inventors: Per J. T. Jensen, Joergen M. Berth