Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9114381 | Super absorbent polymer | Chang Sun Han, Tae Young Won | 2015-08-25 |
| 9100782 | Location and state information providing/inquiring system using WLAN/WPAN communication, log information providing/inquiring system and method, service server and customer terminal, location and state providing/inquiring method | Seung Yoon Baek, Chae Hwan Cho, Chang Seok Lee, Suk Yon Kang, Jong Tae Ihm | 2015-08-04 |
| 9060284 | Method and device for estimating AP position using a map of a wireless LAN radio environment | Chae Hwan Cho, Chang Seok Lee, Suk Yon Kang, Seung Yoon Baek | 2015-06-16 |
| 8874137 | Method and device for discriminating positioning error using wireless LAN signal | Suk Yon Kang, Chae Hwan Cho, Seung Yoon Baek, Chang Seok Lee | 2014-10-28 |