Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6614409 | Glare shielding device of welding helmet and method of controlling the same | — | 2003-09-02 |
| 6552316 | Glare protecting device utilizing both optical and non-optical detectors and method of controlling thereof | — | 2003-04-22 |
| 6483090 | Glare protecting device and method of controlling thereof | — | 2002-11-19 |
| 6026893 | Fin-type heat exchanger having slits formed therein | Gyoo Ha Jung, Sung-Han Jung | 2000-02-22 |
| 5862676 | Refrigerant expansion device | Jong-Youb Kim, Eun Chang CHOI, Yong Chan Kim | 1999-01-26 |
| 5661982 | Electronic refrigerant compressor for a cooling system | Dong-Yul Nam | 1997-09-02 |
| 5530766 | Noise reducing apparatus of a cyclo-fan | Young-keun Hong | 1996-06-25 |
| 5333472 | Air conditioner with heater for heating liquified refrigerant | Jin Baek Kim | 1994-08-02 |
| 5261811 | Burner control system and method | — | 1993-11-16 |