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Guozhong Du

SC Shenzhen Grandsun Electronic Co.: 1 patents #12 of 30Top 40%
Overall (2019): #455,416 of 560,194Top 85%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10283104 Method and apparatus for controlling earphone noise reduction Yanan Song, Haiquan Wu, Ruiwen Shi, Xinian Geng, Jiayun Xu 2019-05-07