ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,257, issued on May 27, was assigned to Ma'anshan Jason Semiconductor Co. Ltd. (Ma'anshan, China).
"Ultraviolet sterilization device" was invented by Yuanzhi Zheng (Ma'anshan, China), Yu Yao (Ma'anshan, China), Jiewei Zhou (Ma'anshan, China), Minglan Zheng (Ma'anshan, China) and Kang Yang (Ma'anshan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ultraviolet sterilization device includes a liquid passing pipe assembly and an ultraviolet light source. The liquid passing pipe assembly includes a shell and a transparent hollow pipe, the shell is sleeved on the hollow pipe, the shell is provided with an accommodating groove. The ultraviolet ligh...