Patents by Inventor Malcolm E. Harding

Malcolm E. Harding 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).

  • Semi-conductor lasers
    Patent number: 4542511
    Abstract: In a semi-conductor laser of buried active laser layer type, the laser layer is located between a layer of n-type material and a layer of p-type material, the sides of the active laser layer and at least a portion of the n-type layer and the p-type layer being covered with a plurality of thin layers with a doping sequence such that a large number of p-n junctions are included in the plurality of thin layers.
    Type: Grant
    Filed: February 23, 1983
    Date of Patent: September 17, 1985
    Assignee: Plessey Overseas Limited
    Inventors: Robert C. Goodfellow, Malcolm E. Harding