Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12031093 | Method of producing pyrolysis oil with reduced impurities | Sang Hwan JO, Soo Kil KANG, Ho Won Lee | 2024-07-09 |
| 9807489 | Method for noise removal of ear phone in portable terminal and apparatus thereof | Mu Seon Im, Hyung Woo Park | 2017-10-31 |
| 9049301 | Method for noise removal of ear phone in portable terminal and apparatus thereof | Mu Seon Im, Hyung Woo Park | 2015-06-02 |
| 6496072 | Amplifying apparatus for a mobile station receiver and method for controlling the same | Seung-Ki Cho, Sang-Yong Yang, Woo Yong Lee, Jae Min Lee | 2002-12-17 |