Patents by Inventor Eric N. Randall

Eric N. Randall 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 containing P.sub.2 O.sub.5 and GeO.sub.2
    Patent number: 4339173
    Abstract: An optical waveguide having a cladding of high purity glass and a core of high purity glass doped with an amount of P.sub.2 O.sub.5 and GeO.sub.2 to increase the refractive index thereof to a predetermined level. The ratio of P.sub.2 O.sub.5 to GeO.sub.2 is such that the softening point temperature of the core is compatible with that of the cladding. The core glass has a cation impurity level not exceeding 10 parts per million.
    Type: Grant
    Filed: September 8, 1975
    Date of Patent: July 13, 1982
    Assignee: Corning Glass Works
    Inventors: Ishwar D. Aggarwal, Eric N. Randall