Issued Patents All Time
Showing 26–26 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6854660 | Air conditioner control system using a public switched telephone network and method for operating the same | Sang Chul Yoon, Jae Sik Jung, Jae Hwan Kwon | 2005-02-15 |