Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10006252 | Drill bit including button array having different radii extending from center of head section | Jung-Woo Cho, Dae Young Shin, Kyoung-Il Moon, Ki Beom Kwon, Chang-Heon Song +1 more | 2018-06-26 |
| 9885955 | Thinner compositions | Ahn-Ho Lee, Seung-Hyun Ahn, Sang Tae Kim, Shi-Jin Sung, Kyong Ho Lee | 2018-02-06 |