ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,578, issued on Sept. 23, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Correlation of ground viscosity and stiffness measurements with terrain conditions" was invented by Rashed Mohammed Al-Ghenaim (Dammam, Saudi Arabia) and Naif Mohammad Alassaf (Al Khobar, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Example computer-implemented methods, media, and systems for correlation of ground viscosity and stiffness measurements with terrain conditions are disclosed. One example computer-implemented method includes generating a respective ratio of measured ground stiffness to measured ground viscosity at each of multiple gro...