Hak-Cheol Lee
12Patents
1h-index
14Co-inventors
47Inventor score
Filing activity: Sep 21, 2010 → Nov 29, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8202102B2 | Earth terminal | Electricity | 3 | Active |
| US11591679B2 | Low-temperature steel material having excellent toughness in welding portion thereof and manufacturing method therefor | Chemistry; Metallurgy | 0 | Active |
| US10883159B2 | High-strength steel having superior brittle crack arrestability, and production method therefor | Chemistry; Metallurgy | 0 | Active |
| US10041156B2 | High strength austenitic-based steel with remarkable toughness of welding heat-affected zone and preparation method therefor | Emerging Cross-Sectional Technologies | 0 | Active |
| US10301707B2 | Steel having excellent weldability and impact toughness of welding zone | Chemistry; Metallurgy | 0 | Active |
| US12338515B2 | Ultra-thick steel excellent in brittle crack arrestability and manufacturing method therefor | Chemistry; Metallurgy | 0 | Active |
| US10822671B2 | High-strength steel having superior brittle crack arrestability, and production method therefor | Chemistry; Metallurgy | 0 | Active |
| US11634784B2 | Ultra-thick steel material having excellent surface part NRL-DWT properties and method for manufacturing same | Chemistry; Metallurgy | 0 | Active |
| US11649518B2 | Ultra-thick steel material having excellent surface part NRL-DWT properties and method for manufacturing same | Chemistry; Metallurgy | 0 | Active |
| US11434557B2 | Low-temperature steel plate having excellent impact toughness, and method for manufacturing same | Chemistry; Metallurgy | 0 | Active |
| US11608549B2 | Cryogenic steel plate and method for manufacturing same | Chemistry; Metallurgy | 0 | Active |
| US11155905B2 | Enhanced wear resistant steel and methods of making the same | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.