Patents by Inventor Martin W. Allen

Martin W. Allen 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 fiber and a method for fabricating a low polarization-mode dispersion and low attenuation optical fiber
    Patent number: 7672557
    Abstract: A method of fabricating an optical waveguide fiber that includes the steps of providing a cylindrical glass optical fiber preform having a longitudinally extending centerline hole, and closing the hole under conditions suitable to result in uniform and symmetric hole closure. The method may include first plugging a first end and a second end of the centerline hole to prevent gas flow therethrough. The method preferably involves closing the centerline hole of the preform by drawing the preform down into an optical waveguide fiber.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: March 2, 2010
    Assignee: Corning Incorporated
    Inventors: Martin W. Allen, Dana C. Bookbinder, Dipakbin Q. Chowdhury, Daniel W. Hawtof, Dale R. Powers