Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10023721 | Dental glass-ionomer cement composition and method of preparing the same | Na Ri Lee, Jae Hwan Kim, Do Weon Lee, Min Sung Kim | 2018-07-17 |
| 10018219 | Hollow drive shaft and method for manufacturing same | Hyun-Il Lee, Jung Su NOH, Jang Sun Lee, Jong Uk SEO, Jae Seung Jeong +2 more | 2018-07-10 |
| 10006146 | Cluster apparatus for treating substrate | Yong-Sung Park, Sung Kwang Lee, Dong Yeul Kim | 2018-06-26 |