CC

Cheon Kyu Choi

EC Em-Tech Co.: 1 patents #7 of 25Top 30%
📍 Suneung-ri, KR: #411 of 843 inventorsTop 50%
Overall (2022): #502,737 of 548,613Top 95%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11381898 Canal-type earphone having pressure equilibrium structure You Lim Choi 2022-07-05