Patents by Inventor James R. Mellor

James R. Mellor 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 glass fibres and method of forming such fibres
    Patent number: 4345036
    Abstract: In optical glass fibres formed of high-silica glass which is susceptible to the production of color centers on drawing into fibres, the attenuation due to such drawing-induced color centers is suppressed or reduced by incorporating from 1 to 100 (preferably 3 to 50) parts per million of cerium oxide in the glass from which the fibre is drawn, under oxidizing conditions such that a significant proportion of the cerium is in the form of ceric ions and the total attenuation is not more than 20 dB/Km in the wavelength range from 800 to 900 nm.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: August 17, 1982
    Assignee: Pilkington Brothers Limited
    Inventors: Charles R. Bamford, James R. Mellor, Bernard Parker