Patents by Inventor Jean J. Laupretre

Jean J. Laupretre 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).

  • Optical cable designed to withstand high pressures
    Patent number: 4521072
    Abstract: The invention relates to an optical cable designed to withstand high pressures and made up of at least one elementary cable comprising optical fibres disposed in a circular cylindrical support and surrounded by at least one wound strip giving more than 100% overlap, the strip being in turn surrounded by a sealing-tight sheath and the elementary cable or cables being in turn surrounded by bearing means, mechanical protection means and electric conducting means.
    Type: Grant
    Filed: June 28, 1982
    Date of Patent: June 4, 1985
    Assignee: Foptica
    Inventors: Henri E. Cholley, Jean J. Laupretre, Jean Rollet