Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9714883 | Bearing test apparatus for testing durability of bearing | Yong Bok Lee, Bokseong Choe, Jeon Kook Lee, Byoungkuk Lee | 2017-07-25 |
| 9121450 | Cage for rolling bearing | Yong Bok Lee, Chang-Ho Kim, Bok Seong Choe | 2015-09-01 |