Patents by Inventor Ian E. Barry

Ian E. Barry 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).

  • Etching method
    Patent number: 6344150
    Abstract: A method of etching structural depressions in a substrate comprises aligning the ferroelectric domains within the substrate to domain orientations selected from two or more possible domain orientations, whereby the rate at which substrate material is etched by an etchant varies with the domain orientation of the substrate material; and exposing the substrate to the etchant.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: February 5, 2002
    Assignee: Qinetiq Limited
    Inventors: Robert W. Eason, Graeme W. Ross, Peter G. R. Smith, Ian E. Barry