Patents by Inventor Peter C. Janssens

Peter C. Janssens 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).

  • Glass optical fiber having a primary and a secondary coating
    Patent number: 4690503
    Abstract: Glass optical fiber having a primary coating constructed from two layers (having a total thickness 50-70 .mu.m), in which the first layer on the fiber consists of UV cured acrylate resin having a modulus of elasticity at 25.degree. C. less than or equal to 5 N/mm.sup.2. The second layer is also a UV cured acrylate resin, but has a modulus of elasticity at 25.degree. C. of from 25 to 1500 N/mm.sup.2. The ratio of the thickness of the first layer to the thickness of the second layer is between 0.5 and 2.
    Type: Grant
    Filed: September 12, 1984
    Date of Patent: September 1, 1987
    Assignee: U.S. Philips Corp.
    Inventors: Petrus J. Janssen, Peter C. Janssens