ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,260, issued on Dec. 16, was assigned to JOTIM DAILY CHEMICAL (HANGZHOU) COMPANY LTD. (Zhejiang, China).
"Liquid eyeliner pen" was invented by Biao Lou (Zhejiang, China) and Liyu Chen (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A liquid eyeliner pen includes a barrel, an accommodating cavity is formed in the barrel, the barrel is connected with a liquid delivery assembly, an end of the liquid delivery assembly is in communication with the accommodating cavity, the barrel is connected with a cap configured for covering the liquid delivery assembly, a stirring element with a stirring end is slidably connected in the accommodating ca...