Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868484 | Reference voltage generator using a charging and discharging circuit | Dong-Il Seo | 1989-09-19 |
JR
Je-Hwan Ryu
Overall (1989): #97,357 of 140,708Top 70%
1
Patents 1989