Patents by Inventor Fuewen Frank Liou

Fuewen Frank Liou 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).

  • SYSTEM AND METHOD FOR DETECTING A DEFECT IN A WORKPIECE UNDERGOING MATERIAL PROCESSING BY AN ENERGY POINT SOURCE
    Publication number: 20160144452
    Abstract: A method for detecting a subsurface defect in a workpiece undergoing processing includes directing focused heat energy from an energy point source on to the workpiece to generate a melt pool and cause a solid portion of the workpiece to emit incandescent radiation. The incandescent radiation emitted by the solid portion of the workpiece is captured and a signal based upon the color or intensity of the captured incandescent radiation is output. A processor receives the output signal and analyzes it for any variance. If any variance is detected, the region associated with the variance is determined. In this fashion, gradients in the color or intensity distribution reveal subsurface defects.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 26, 2016
    Applicant: Product Innovation & Engineering, LLC
    Inventors: Fuewen Frank Liou, Todd E. Sparks
  • Systems and methods for fabricating a direct metal deposition structure having fully forged structural qualities
    Patent number: 8617661
    Abstract: A method for fabricating a direct metal deposition (DMD) structure having substantially fully forged structural qualities is provided. In various embodiments, the method includes depositing a layer of metallic material onto an existing metallic structure having a microstructure that provides the existing metallic structure with substantially fully forged structural qualities. The DMD layer has a microstructure that provides the DMD layer with non-forged structural qualities.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: December 31, 2013
    Assignee: The Curators of the University of Missouri
    Inventors: Joseph William Newkirk, Fuewen Frank Liou, Romy Francis
  • SYSTEMS AND METHODS FOR FABRICATING A DIRECT METAL DEPOSITION STRUCTURE HAVING FULLY FORGED STRUCTURAL QUALITIES
    Publication number: 20110293840
    Abstract: A method for fabricating a direct metal deposition (DMD) structure having substantially fully forged structural qualities is provided. In various embodiments, the method includes depositing a layer of metallic material onto an existing metallic structure having a microstructure that provides the existing metallic structure with substantially fully forged structural qualities. The DMD layer has a microstructure that provides the DMD layer with non-forged structural qualities.
    Type: Application
    Filed: May 25, 2010
    Publication date: December 1, 2011
    Applicant: THE CURATORS OF THE UNIVERSITY OF MISSOURI
    Inventors: Joseph William Newkirk, Fuewen Frank Liou, Romy Francis