ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,484,712, issued on Dec. 2.

"Child care apparatus" was invented by Yaming He (Maoming, China), Guanlin Chen (Lianjiang, China) and Yingxin Hu (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A child care apparatus includes a horizontal reciprocating motion mechanism, a vertical reciprocating motion mechanism, and a supporting device. The horizontal reciprocating motion mechanism includes a mounting cover. The vertical reciprocating motion mechanism is disposed at the mounting cover. The vertical reciprocating motion mechanism includes a lifting component and a driving mechanism for driving the lifting component to move, the lifting compone...