GENEVA, Oct. 17 -- QIWEI TECHNOLOGY INVESTMENT (SHENZHEN) CO., LTD (15370, Building 3, Xumi Technology Plaza, No.8 Keyuan Road, Science And Technology Park Community, Yuehai Street, Nanshan DistrictShenzhen, Guangdong 518000), 启为技术投资（深圳）有限公司 (中国广东省深圳市南山区粤海街道科技园社区科苑路8号讯美科技广场3号楼15370) filed a patent application (PCT/CN2024/086621) for "OPTICAL TRANSCEIVING DEVICE, METHOD AND CHIP" on Apr 08, 2024. With publication no. WO/2025/...