- US Patent #6734974
Zhiping Jiang, Qin Chen, Xie George Xu, and Xi-Cheng Zhang,
Terahertz imaging with dynamic aperture, awarded on May 11, 2004.
- US Patent #6518579
Xie George Xu and Edward P. Naeseens
Non-Destructive in-situ method and apparatus for determining radionuclide depth in media, awarded on February 11, 2003