Patents by Inventor Bernhard N. A. Lersmacher

Bernhard N. A. Lersmacher 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).

  • Arrangement for splicing optical waveguides and method of manufacturing same
    Patent number: 4865413
    Abstract: The arrangement comprises a carrier (1) having fibre-guiding grooves (2), which carrier is made of glass-like carbon. In the manufacture of the carrier the fibre-guiding grooves are formed in a cured phenol-resin body preferably by means of an extrusion die whose shape corresponds to that of the fibre-guiding grooves to be formed. The phenol-resin body thus formed is converted into the glass-like carbon carrier by carbonization.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: September 12, 1989
    Assignee: U.S. Philips Corp.
    Inventors: Horst H. Hubner, Bernhard N. A. Lersmacher