YX

Yuanfa Xin

SC Shenzhen Grandsun Electronic Co.: 1 patents #10 of 25Top 40%
Overall (2021): #191,941 of 548,734Top 35%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10924841 Bluetooth sport earphone Shiwen Guo, Haiquan Wu, Xin Yu, Ruiwen Shi 2021-02-16