Patents by Inventor Michael Bertrand Devas

Michael Bertrand Devas 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).

  • Bone securing devices
    Patent number: 4059102
    Abstract: A bone screw is provided having leading and trailing end portions with respective threads of opposite hands. The leading end portion will normally be narrower than the trailing end portion, and either or both portions can be tapered towards their leading ends.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: November 22, 1977
    Assignee: National Research Development Corporation
    Inventor: Michael Bertrand Devas