ALEXANDRIA, Va., July 21 -- United States Patent no. 12,686,639, issued on July 21, was assigned to SHENZHEN SMOORE TECHNOLOGY Ltd. (Shenzhen, China).

"Ceramic, vaporization core, and vaporizer" was invented by Pei Li (Shenzhen, China), Hongxia Lv (Shenzhen, China) and Zhenlong Jiang (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ceramic includes: a ceramic base; and a modification layer arranged on a surface of the ceramic base. The modification layer includes a bismuth-based oxide and other components. In an embodiment, the ceramic base includes a porous ceramic. In an embodiment, the bismuth-based oxide includes bismuth trioxide. In an embodiment, a mass percentage of bismuth in the mod...