ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,507,841, issued on Dec. 30, was assigned to Shenzhen Wenjian Technology Co. Ltd. (Shenzhen, China).
"Toilet trainer" was invented by Zhi Liu (Shenzhen, China) and Tingting Yin (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A toilet trainer includes: a hollow, first bowl defining a through hole; a hollow, second bowl; a compartment; and a seat assembly. In a first state, the first bowl, the second bowl, the compartment and the seat assembly are detachably connected to one another. In a second state, the second bowl is to receive at least a portion of the first bowl, the first bowl is in communication with the second bowl through the thro...