Patents by Inventor Claude Létourneau

Claude Létourneau 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).

  • High temperature solid state hollow cylindrical battery including a plurality of solid polymer electrolyte cell
    Patent number: 6187469
    Abstract: There is disclosed a battery system to be used in downhole application. The battery system provides energy to operate the measurement devices associated with drilling. The system includes a plurality of cells, each comprising an electrically insulating mandrel which is shaped to fit over an inner tube, and a combination of an anode, a cathode and a solid polymer electrolyte, all disposed over the mandrel. The individual cells are mounted end to end and are interlocked together to prevent rotation of the cells relative to one another. The cells are electrically connected together and they are all mounted between an inner and an outer tube.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: February 13, 2001
    Assignees: Hydro-Québec, Redox Engineering Inc., Baker Hughes Inteq
    Inventors: Nikola Marincic, Claude Létourneau, John W. Harrell