ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,504, issued on Dec. 23.
"Constant power control device of active vaporization suction apparatus" was invented by Yun-Shan Chang (San Jose, Calif.) and Da-Wei Lin (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A constant power control device of an active vaporization suction apparatus includes a power unit, a first load matching unit, a matching control unit, a second load matching unit, and a constant current generation unit. To replace a medication box along with a liquefied medication within, a new medication box is mounted on the constant power control device, and the first load matching unit is electrically connected to a load ...