ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,310, issued on Dec. 16, was assigned to XIANGTAN UNIVERSITY (Xiangtan, China).

"Device and method for measuring pore size distribution of porous media through harmonic analysis" was invented by Hui Dong (Xiangtan, China), Fengming Tan (Xiangtan, China), Qianfeng Gao (Xiangtan, China), Yiyue Ma (Xiangtan, China), Zhengdong Luo (Xiangtan, China), Jiazhan Ren (Xiangtan, China) and Fengwen Long (Xiangtan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a device and a method for measuring pore size distribution of porous media through a harmonic analysis. The device includes a signal application system, instruments for measuring pressur...