Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D624039 | Mobile phone | Young-Keun Lee, Chang-Hwan Hwang | 2010-09-21 |
| D615950 | Mobile phone | Young-Keun Lee, Chang-Hwan Hwang | 2010-05-18 |
| D613705 | Mobile phone | Young-Keun Lee, Chang-Hwan Hwang | 2010-04-13 |
| D605155 | Mobile phone | Yoon-Young Cho, Chang-Hwan Hwang | 2009-12-01 |
| D596602 | Portable telephone | Yoon-Young Cho, Chang-Soo Lee | 2009-07-21 |
| D583784 | Mobile phone | Yoon-Young Cho, Chang-Soo Lee | 2008-12-30 |
| D574352 | Cellular phone | Yoon-Young Cho, Chang-Soo Lee | 2008-08-05 |
| 7395100 | Portable communication apparatus having keys moved up/down by rotation | In-Gon Park, Chang-Soo Lee | 2008-07-01 |
| D571343 | Mobile phone | Yoon-Young Cho, Chang-Soo Lee | 2008-06-17 |
| D567795 | Portable phone | Yoon-Young Cho, Chang-Soo Lee | 2008-04-29 |
| D558721 | Portable telephone | Yoon-Young Cho, Chang-Soo Lee | 2008-01-01 |
| D556727 | Portable telephone | Chang-Soo Lee, Joon-Suh Kim | 2007-12-04 |
| D553113 | Portable phone | Jun Kim, Chang-Soo Lee | 2007-10-16 |
| D542267 | Headset | Joon-Suh Kim, Chang-Soo Lee | 2007-05-08 |
| D530300 | Portable phone | Jun Kim, Chang-Soo Lee | 2006-10-17 |