Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9785170 | Dispatcher training simulating device and operation method thereof | — | 2017-10-10 |
| 9714984 | Apparatus and method for estimating state of health of vehicle battery | — | 2017-07-25 |
| 6937785 | Optical communication system using 4 wavelength add/drop type wavelength division multiplexing | — | 2005-08-30 |
| 6252642 | Method for aligning polymer film and method for aligning liquid crystal by using polymer aligned-film | Sang Un Choi | 2001-06-26 |