GENEVA, Nov. 23 -- MZ OPTOELECTRONIC TECHNOLOGY (SHANGHAI) CO., LTD. (Building 1 And Building 2, No. 333, Ocean Road 1, Lingang New Area, China (Shanghai) Pilot Free Trade ZonePudong New Area, Shanghai 201306), 魅杰光电科技(上海 )有限公司 (中国上海市浦东新区中国(上海)自由贸易试验区临港新片区海洋一路333号1号楼、2号楼) filed a patent application (PCT/CN2025/080226) for "OPTICAL FLOW-BASED OVERLAY ERROR MEASUREMENT METHOD, APPARATUS, AND SYSTEM, AND STO...