ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,384,725, issued on Aug. 12, was assigned to YUNNAN HUAPU QUANTUM MATERIAL Co. LTD (Yunnan, China), ROI OPTOELECTRONICS TECHNOLOGY CO LTD. (Shanghai), CHONGQING INSTITUTE OF EAST CHINA NORMAL UNIVERSITY (Chongqing, China) and EAST CHINA NORMAL UNIVERSITY (Shanghai).

"Method for preparing boron carbide material" was invented by Heping Zeng (Chongqing, China), Mengyun Hu (Chongqing, China) and Wei Qiao (Chongqing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for preparing a boron carbide material includes: providing raw materials of a boron material, a carbon material and a rare earth oxide, wherein an element molar ratio B:C of the boron ...