Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9075075 | Average pitot tube type flow meter | Sang Hie Han | 2015-07-07 |
| RE45392 | Information management system by means of portable appliances via wire or wireless internet and the method for the same | Seung Han Song | 2015-02-24 |
| 8160822 | Apparatus and method for measuring optimum water quality and informing quality of water | — | 2012-04-17 |
| 7758426 | On-line game tournament system the prize money of which is determined by the winning number and the method for the same | — | 2010-07-20 |