SB

Sheng Biao

SC Shenzhen Grandsun Electronic Co.: 1 patents #42 of 75Top 60%
Overall (All Time): #4,154,268 of 4,157,543Top 100%
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Patent #TitleCo-InventorsDate
D869434 Sport earphone Wu Haiquan, Zhou Shiyong, Yoshinari Okamoto, Peng Jiugao, Shi Ruiwen 2019-12-10