Issued Patents All Time
Showing 101–107 of 107 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7612231 | Method for recovering acrylic acid | Seong-Pil Kang, Seok Hwan Choi, Kyoung-Su Ha, Jun Seok Ko, Boo Gon Woo | 2009-11-03 |
| 7608734 | Method of producing unsaturated acid in fixed-bed catalytic partial oxidation reactor with high efficiency | Kyoung-Su Ha, Boo Gon Woo, Jun Seok Ko, Seong-Pil Kang, Seok Hwan Choi | 2009-10-27 |
| 7591585 | Temperature measuring device | Kyoung-Su Ha, Boo Gon Woo, Jun Seok Ko, Seong-Pil Kang, Seok Hwan Choi +1 more | 2009-09-22 |
| 7319169 | Method for producing (meth) acrylic acid | Seong-Pil Kang, Seok Hwan Choi, Kyoung-Su Ha, Geon Yong Kim, Boo Gon Woo +2 more | 2008-01-15 |
| 5867442 | Variable output voltage booster circuits and methods | Hong-Sun Hwang | 1999-02-02 |
| 5722459 | Pressure control valve of a hydraulic control system of an automatic transmission | Jae-Duk Jang | 1998-03-03 |
| 5610816 | Automatic steering method and apparatus for a non- railed transfer crane | — | 1997-03-11 |