YX

Yuanfa Xin

SC Shenzhen Grandsun Electronic Co.: 1 patents #42 of 75Top 60%
Overall (All Time): #2,710,944 of 4,157,543Top 70%
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Patent #TitleCo-InventorsDate
10924841 Bluetooth sport earphone Shiwen Guo, Haiquan Wu, Xin Yu, Ruiwen Shi 2021-02-16