GENEVA, April 5 -- RAYCONO (SHENZHEN) INNOVATION CO., LTD. (4/F, Block 5, Third Industrial Park Of Nangang, Tangtou Village, Shiyan Town, Bao'an DistricShenzhen, Guangdong 518000), 深圳瑞康诺净源科技有限公司 (中国广东省深圳市宝安区石岩街道塘头社区南岗第三工业园5栋四层) filed a patent application (PCT/CN2023/123976) for "MICROPOROUS VENTILATED NOISE-CANCELLING EARPLUG" on Oct 11, 2023. With publication no. WO/2025/065738, the details related to the patent application was published on Apr 03, 20...