ALEXANDRIA, Va., July 3 -- United States Patent no. 12,343,656, issued on July 1.

"3D model-pressing shoe sole" was invented by Chunliang Zou (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention pertains to the field of toy technology and discloses a shoe sole that can press out 3D models, which includes a toy shoe sole main body made of PVC material. The characteristic of the invention are as follows: The upper surface of the said toy sole body is provided with a shoe treading surface, and the interior of the shoe treading surface is provided with a deflector slope and an ink inlet. The ink inlet is located in the center of the deflector slope. The interior of the toy sole body is...