Patents by Inventor Albert Speth

Albert Speth 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).

  • Polymeric optical waveguides and methods of forming the same
    Patent number: 5054872
    Abstract: A structure comprising a layer of polymeric material containing epoxy groups having preselected regions of different degrees of polymerization and different refractive indices; and a method for forming a structure comprising a layer of polymeric material containing epoxy groups having preselected regions of differing degrees of polymerization and differing refractive indices which comprises providing a polymeric material containing epoxy groups on a support and selectively modifying the refractive index in said material.
    Type: Grant
    Filed: March 16, 1990
    Date of Patent: October 8, 1991
    Assignee: IBM Corporation
    Inventors: Bunsen Fan, Donis G. Flagello, Jeffrey D. Gelorme, Modest M. Oprysko, Albert Speth, Jeannine M. Trewhella