ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,598, issued on March 25, was assigned to SHENZHEN SISENSING Co. LTD. (Shenzhen, China).

"Batch coating apparatus and batch coating method" was invented by Yunfeng Li (Shenzhen, China), Bin Xia (Shenzhen, China) and Mingsong Han (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Some embodiments of the disclosure describe a batch coating apparatus. In some examples, the batch coating apparatus includes a fixing mechanism, a liquid holding mechanism, a liquid injection mechanism and a control device. The fixing mechanism includes a plurality of fixing portions for fixing work-pieces to be coated. The liquid holding mechanism includes a p...