Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10138932 | Air foil thrust bearing | Chang Ha Lee | 2018-11-27 |
| 10090545 | Structure of fuel cell system and controlling method thereof | Hyuck Roul Kwon, Hyun Yoo Kim, Chang Ha Lee | 2018-10-02 |
| 9909618 | Thrust bearing for vehicle air compressor | Chang Ha Lee, Jeong-Hee Park, Tae Ho Kim, Moon Sung Park, Jong Sung Lee +1 more | 2018-03-06 |