QM

Qingkai Mei

SC Shenzhen Meidong Acoustics Co.: 2 patents #1 of 1Top 100%
Overall (2021): #121,733 of 548,734Top 25%
2
Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D908115 Earphone 2021-01-19
D907598 Headphone 2021-01-12