ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,190, issued on Dec. 30, was assigned to BIBOTING INTERNATIONAL Co. LTD. (Taoyuan, Taiwan).
"Negative-pressure massaging device" was invented by Po-Chang Liu (Taoyuan, Taiwan) and Chia-Hsueh Hsieh (Taoyuan, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A negative-pressure massaging device capable of volatilizing essential oil is provided. The negative-pressure massaging device includes a negative-pressure cup and an essential oil volatilizing structure. The essential oil volatilizing structure is disposed in the negative-pressure cup and includes a heat conducting unit, a heating unit, and an essential oil unit. The heating unit is disposed o...