Patents by Inventor Peter J. Pilon

Peter J. Pilon 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 waveguide manufacture
    Patent number: 4734117
    Abstract: Optical waveguide having a fused silica core and a fluorine doped fused silica cladding is made by depositing particulate core silica onto a support tube and then drying and densifying the silica. Further particulate cladding silica is deposited and is heated in a fluorine containing gas to effect drying, fluorine diffusion into and sintering the cladding silica. The support tube is etched away and the resulting tubular preform is heated to collapse it into a rod from which waveguide is drawn, the waveguide having a fluorine doped silica cladding.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: March 29, 1988
    Assignee: Northern Telecom Limited
    Inventors: Peter J. Pilon, Richard S. Lowe