Patents by Inventor Vivian Stephen

Vivian Stephen 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).

  • Non-destructive testing of physical characteristics of composite structures
    Patent number: 7439749
    Abstract: A method for detecting an anomaly in a composite material comprising directing two transmitted electromagnetic wave signals orthogonally polarized with respect to each other from a probe to the composite material, wherein the probe and composite material are positioned for near-field evaluation of the probe. A related apparatus comprising an open-ended square waveguide probe.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: October 21, 2008
    Assignee: The Curators of the University of Missouri
    Inventors: Reza Zoughi, Sergiy Kharkivskiy, Vivian Stephen
  • NON-DESTRUCTIVE TESTING OF PHYSICAL CHARACTERISTICS OF COMPOSITE STRUCTURES
    Publication number: 20080129316
    Abstract: A method for detecting an anomaly in a composite material comprising directing two transmitted electromagnetic wave signals orthogonally polarized with respect to each other from a probe to the composite material, wherein the probe and composite material are positioned for near-field evaluation of the probe. A related apparatus comprising an open-ended square waveguide probe.
    Type: Application
    Filed: October 23, 2006
    Publication date: June 5, 2008
    Inventors: Reza Zoughi, Sergiy Kharkivskiy, Vivian Stephen