ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,498,735, issued on Dec. 16, was assigned to GUANGDONG UNIVERSITY OF TECHNOLOGY (Guangzhou, China).

"Methods for attitude control of quadrotor unmanned aerial vehicle (UAV)" was invented by Jie Tao (Guangzhou, China), Xinyan Li (Guangzhou, China), Zehui Xiao (Guangzhou, China), Xiuwei Huang (Guangzhou, China), Jiaye Zhou (Guangzhou, China) and Renquan Lu (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a method for attitude control of a quadrotor UAV, comprising establishing an attitude dynamics model of the quadrotor UAV, establishing a motion equation and a state-space equation of a UAV control system, d...