Patents by Inventor Payman Hajiani

Payman Hajiani 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).

  • SPECTRAL ANALYSIS OF SURFACE WAVES TO DETECT SUBSURFACE VOIDS
    Publication number: 20180100947
    Abstract: Systems and methods for detecting a subsurface cavity. A source applies a force to ground under inspection and a plurality of sensors coupled to the ground detect resulting surface waves. A processor is configured to extract phase and frequency components of the acquired seismic data, identify a phase shift in surface waves in the ground under inspection based on the extracted phase and frequency components, and determine one or more physical characteristics of a subsurface cavity based on the identified phase shift.
    Type: Application
    Filed: October 2, 2017
    Publication date: April 12, 2018
    Applicant: The Curators of the University of Missouri
    Inventors: Payman Hajiani, Neil L. Anderson, J. David Rogers