CJ

Chang Hwa Jeong

EC Em-Tech Co.: 1 patents #33 of 70Top 50%
SC Semes Co.: 1 patents #467 of 991Top 50%
Samsung: 1 patents #49,284 of 75,807Top 70%
📍 Geoado-ri, KR: #35 of 152 inventorsTop 25%
Overall (All Time): #906,524 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
12269057 Apparatus and method for processing substrate Young Oh, Jung-Soo Lee, Chung Oh Hong 2025-04-08
11206480 Open-air type earphone with bracket forming bass pipe Dong Wook Lim 2021-12-21
10123508 Apparatus for measuring amount of feed using weight sensor Joontaik Lee, Dong K. Chung, Shin Jeong Song 2018-11-13
7807201 Antifungal agent comprising natural plant extracts Kyoung Dong Jeon, Moon Hyu Yang, Won S. Kim, Kyung Chool An, Back Chun Lee 2010-10-05
6904608 Spring for motors and optical disk driver with such spring Jun-Sung Lee 2005-06-07