GD

Gouzhong Du

SC Shenzhen Grandsun Electronic Co.: 1 patents #12 of 30Top 40%
Overall (2019): #458,227 of 560,194Top 85%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10271126 Earphone noise reduction method and apparatus Yanan Song, Haiquan Wu, Ruiwen Shi, Xinian Geng, Jiayun Xu 2019-04-23