US Patent Issued to GEOPHYSICAL SURVEY SYSTEMS on May 5 for "Methods for calculating a relative change in percent voids using electromagnetic wave reflection coefficients" (Massachusetts Inventor)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,883, issued on May 5, was assigned to GEOPHYSICAL SURVEY SYSTEMS INC. (Nashua, N.H.).

"Methods for calculating a relative change in percent voids using electromagnetic wave reflection coefficients" was invented by Roger Roberts (Amesbury, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for calculating the change in percent voids between a reference location and a second location in a medium. The method includes obtaining a reference reflection coefficient of an electromagnetic wave reflection at the reference location, and a second reflection coefficient of an electromagnetic wave reflection at the second location. The obtained reflectio...