Patents by Inventor Edwin F. W. Leach

Edwin F. W. Leach 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).

  • Integrated optic waveguide with bend
    Patent number: 4993794
    Abstract: An integrated optic device includes a waveguide which is curved and includes a section at the bend which is capable of supporting more than one waveguide mode at the opearting frequency. This enables bend angles of greater than 5.degree. be to accommodated without excessive power losses.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: February 19, 1991
    Assignee: GEC-Marconi Limited
    Inventors: Terence P. Young, Stuart N. Radcliffe, Edwin F. W. Leach