Patents by Inventor John W. Shiever

John W. Shiever 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).

  • Aluminum metaphosphate optical fibers
    Patent number: 4379616
    Abstract: Aluminum metaphosphate optical fibers are disclosed. In a specific embodiment, aluminum metaphosphate, doped with from 10 to 30 mole percent of diboron trioxide, is found to yield an optical fiber which combines the desirable properties of both high numerical aperture and low material dispersion. The fiber is nonhygroscopic and has a high melting temperature. The index of refraction of the glass may be lowered by doping with silicon dioxide. Consequently, a graded fiber may be made by increasing the concentration of silicon oxide from the core to the cladding.
    Type: Grant
    Filed: May 1, 1981
    Date of Patent: April 12, 1983
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: James W. Fleming, Jr., John W. Shiever
  • Aluminum metaphosphate optical fibers
    Patent number: 4302074
    Abstract: Aluminum metaphosphate optical fibers are disclosed. In a specific embodiment, aluminum metaphosphate, doped with from 10 to 30 mole percent of diboron trioxide, is found to yield an optical fiber which combines the desirable properties of both high numerical aperture and low material dispersion. The fiber is nonhygroscopic and has a high melting temperature. The index of refraction of the glass may be lowered by doping with silicon dioxide. Consequently, a graded fiber may be made by increasing the concentration of silicon oxide from the core to the cladding.
    Type: Grant
    Filed: April 2, 1979
    Date of Patent: November 24, 1981
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: James W. Fleming, Jr., John W. Shiever