Patents by Inventor Mark Robert Wilkinson

Mark Robert Wilkinson 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 grating and a method of fabricating an optical grating
    Patent number: 6172811
    Abstract: An optical grating includes a sequence of grating lines, the sequence being such that each grating line is centered on a position which is an integer multiple of a line spacing distance from a datum position on the grating, the sequence of grating lines is non-periodic and the sequence of the grating lines is formed from N concatenated sub-sequences. Each sub-sequence includes a series of one or more instances of a respective grating line pattern. Such an optical grating has a structure that is more amenable to calculation of the grating lines necessary to achieve a desired characteristic. A method of calculating and fabricating such a grating is also disclosed.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: January 9, 2001
    Assignee: British Telecommunications public limited comany
    Inventors: David Charles Wood, Stephen Anthony Cassidy, Mark Robert Wilkinson, Paul Francis McKee
  • Optical grating and method of fabricating an optical grating
    Patent number: 5666224
    Abstract: An optical grating includes a sequence of grating lines, the sequence being such that each grating line is centered on a position which is an integer multiple of a line spacing distance from a datum position on the grating, the sequence of grating lines is non-periodic and the sequence of grating lines is formed from N concatenated subsequences. Each subsequence includes a series of one or more instances of a respective grating line pattern. Such an optical grating has a structure that is more amenable to calculation of the grating lines necessary to achieve a desired characteristic. A method of calculating and fabricating such a grating is also disclosed.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: September 9, 1997
    Assignee: British Telecommunications public limited company
    Inventors: David Charles Wood, Stephen Anthony Cassidy, Mark Robert Wilkinson, Paul Francis McKee