ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,060, issued on June 16, was assigned to ZHEJIANG UNIVERSITY OF SCIENCE & TECHNOLOGY (Hangzhou, China).

"Vacuum drying device and using method thereof" was invented by Tingting Lang (Hangzhou, China), Fanghao Li (Hangzhou, China), Xinrong Jin (Hangzhou, China) and Junhao Ye (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vacuum drying device and a related method thereof are provided. The device includes a box body, where a bottom end of the box body is provided with a base, and a top end of the box body is communicated with a vacuumizing pipeline. A lifting mechanism is arranged in the base, and a top end of the lifting mechanism is...