ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,751,807, issued on Oct. 6, was assigned to GUILIN WOODPECKER MEDICAL INSTRUMENT Co. LTD. (Guilin, China).

"Light-emitting module, light source and dental photocuring machine" was invented by Xunxian Wu (Guilin, China), Benqin Zhang (Guilin, China), Fengwen Wei (Guilin, China) and Jiabing Xu (Guilin, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a light-emitting module, a light source and a dental photocuring machine, relating to a technical field of oral medical instruments. On the basis of arranging a plurality of light-emitting units as a whole in a rectangular array in a preset rectangular area, light-emitting units arranged in a r...