Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7746991 | Apparatus and method of providing a call service using a prepaid card in a portable terminal | Seung-Chul Choi | 2010-06-29 |
YG
Yong-Seok Gil
Overall (All Time): #3,293,902 of 4,157,543Top 80%
1
Patents All Time