Patents by Inventor Johanna Catharina van Lierop Jansen, legal representative

Johanna Catharina van Lierop Jansen, legal representative 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).

  • Method and device for manufacturing optical preforms, as well as the optical fibres obtained therewith
    Patent number: 7734135
    Abstract: The present invention relates to a method and a device for manufacturing optical performs, in which one or more layers of glass, doped or undoped, are deposited onto the internal surface of a hollow substrate tube, which deposition is effected by supplying one or more reactive gas mixtures of glass-forming compounds tot the interior of the hollow substrate tube and subsequently generating a non-isothermal plasma in the hollow substrate tube, after which the preform is subjected to a contraction process for the purpose of forming a massive rod, from which optical fibres are drawn.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: June 8, 2010
    Assignee: Draka Comteq B.V.
    Inventors: Pieter Matthijsse, Mattheus Jacobus Nicolaas Van Stralen, Henrikus Lambertus Maria Jansen, Johanna Catharina van Lierop Jansen, legal representative, Antonius Cornelis Johannes Maria De Vetter, Marinus Jacob De Fouw