ALEXANDRIA, Va., June 19 -- United States Patent no. 12,332,666, issued on June 17, was assigned to FIRST INSTITUTE OF OCEANOGRAPHY, MINISTRY OF NATURAL RESOURCES (Qingdao, China).

"Sampling method for surface sediments in intertidal zone based on unmanned aerial vehicle platform" was invented by Jun Du (Shandong, China), Ziwen Tian (Shandong, China), Guoqiang Xu (Shandong, China), Yuxiu Jin (Shandong, China) and Qian Li (Shandong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a sampling method for surface sediments in an intertidal zone based on an unmanned aerial vehicle platform, including: at low tide, automatically or manually moving an unmanned aerial vehicle to an appropriate height...