Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11155905 | Enhanced wear resistant steel and methods of making the same | HyunWoo Jin, Ning Ma, Raghavan Ayer, Russell Robert Mueller, Hak-Cheol Lee +1 more | 2021-10-26 |
| 11155906 | Pressure vessel steel having excellent hydrogen induced cracking resistance, and manufacturing method therefor | Dae-Woo Kim, Young-Jin Jung | 2021-10-26 |
| 10655196 | Austenitic steel having excellent machinability and ultra-low temperature toughness in weld heat-affected zone, and method of manufacturing the same | Soon-Gi LEE, Young Hwan Park, Hee-Goon Noh, Hyun-Kwan Cho, In-Shik Suh +2 more | 2020-05-19 |
| 9708698 | Wear resistant steel having excellent toughness and weldability | Woo-Kil Jang, Young Hwan Park, Hong-Ju Lee | 2017-07-18 |
| 9650703 | Wear resistant austenitic steel having superior machinability and toughness in weld heat affected zones thereof and method for producing same | Soon-Gi LEE, Hee-Goon Noh, Hong-Ju Lee, In-Shik Suh, In-Gyu Park | 2017-05-16 |
| 9394579 | High-strength steel material having outstanding ultra-low-temperature toughness and a production method therefor | Kyung-Keun Um, Woo-Kil Jang, Hee-Goon Noh, Hyun-Kwan Cho | 2016-07-19 |
| 8702880 | High strength and low yield ratio steel for structure having excellent low temperature toughness | Jae-Young Cho, Kyung-Keun Um | 2014-04-22 |
| 5575973 | High strength high toughness spring steel, and manufacturing process therefor | Hae-Chang Choi, Won-Jun Nam, Soo D. Bark, Jong-Han Choi, Jang Gyun KIM | 1996-11-19 |