ALEXANDRIA, Va., June 5 -- United States Patent no. 12,274,208, issued on April 15, was assigned to JIANGSU UNIVERSITY (Zhenjiang, China).

"Self-adaptive control system and method for stubble height and stubble righting operation of ratooning rice" was invented by Lizhang Xu (Zhenjiang, China), Jinpeng Hu (Zhenjiang, China), Peng Liu (Zhenjiang, China), Shuaifeng Xing (Zhenjiang, China), Jiahui Pan (Zhenjiang, China), Xiaoyu Chai (Zhenjiang, China) and Zheng Ma (Zhenjiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A self-adaptive control system for height and operation of ratooning rice stubble cutting includes a stubble righting device, a profiling contact sensor, a speed radar, and a controller;...