Patents by Inventor Julia M. Jowett

Julia M. Jowett 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).

  • Semiconductor mixed crystal quantum well device manufacture
    Patent number: 5254496
    Abstract: A strain-compensated III-V quantum well device is grown by vapor phase epitaxy using the same relative atomic proportions of indium and gallium in both the quantum well layers (20) and the barrier layers (21). The top and bottom barrier layers of the quantum well stack are half the thickness of the other barrier layers of the stack.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: October 19, 1993
    Assignee: Northern Telecom Limited
    Inventors: Alan T. R. Briggs, Julia M. Jowett