GENEVA, April 27 -- AAC MICROTECH (CHANGZHOU) CO., LTD. (No. 3 changcao road, Hi-TECH Industrial Zone, Wujin DistrictChangzhou, Jiangsu 213167), 瑞声光电科技（常州）有限公司 (中国江苏省常州市武进高新技术产业开发区常漕路3号) filed a patent application (PCT/CN2023/124725) for "SOUND-PRODUCING DEVICE" on Oct 16, 2023. With publication no. WO/2025/081303, the details related to the patent application was published on Apr 24, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC...