Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10343138 | PST-20 zeolite, preparation method for the same, and selective separation method for carbon dioxide using the same | Suk Bong Hong, Jiho Shin | 2019-07-09 |
| 6725065 | Alerting device for notifying incoming call by using earphone jack in portable mobile phone | — | 2004-04-20 |