ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,492,060, issued on Dec. 9, was assigned to Shenzhen SETOO Technology Co. Ltd. (Shenzhen, China) and Shenzhen Joy Innovation Technology Co. Ltd. (Shenzhen, China).

"Mason jar sealing structure" was invented by Shizan Xu (Shenzhen, China) and Bin Zeng (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A Mason jar sealing structure, comprising a sealing cover, and a flexible part is provided on the sealing cover; the flexible part is located corresponding to position of negative pressure end of negative pressure pump; a Mason jar body, which is internally hollow, and the sealing cover is set covering opening of the upper Mason jar body; a jar c...