Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9744584 | Hot formed coiling machine | Ui-Seuk Yoon | 2017-08-29 |
| 9718162 | Compression line spring grinding device | Ui-Seuk Yoon | 2017-08-01 |
| 9694463 | Apparatus and method for grinding compression line spring | Ui-Seuk Yoon | 2017-07-04 |
| 8539675 | Method for manufacturing a tapered stabilizer bar having a continuously changing cross-section | — | 2013-09-24 |
| 8438733 | Method of manufacturing coil spring using helicoid reduction mill | — | 2013-05-14 |
| 8424352 | Apparatus and method for manufacturing barrel coil spring | Soon-Sam Hong | 2013-04-23 |
| 8328603 | Apparatus for stress shot peening of coil spring | Ui-Seok Yoon | 2012-12-11 |
| 8307683 | Apparatus for manufacturing coil spring | — | 2012-11-13 |
| 7984918 | Tapered stabilizer bar having continuously changing cross-section and method for manufacturing the same | — | 2011-07-26 |