Issued Patents All Time
Showing 76–100 of 107 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10105670 | Heat recovery device | Tae Woo Kim, Sung Kyu Lee | 2018-10-23 |
| 10086325 | Membrane separation device | Sang Beom Lee, Moon-kyoon Chun, Sung Ho Lee, Jong Ku Lee | 2018-10-02 |
| 9983690 | Four row overloaded QWERTY-like keypad layout | Hyun Woo Shin | 2018-05-29 |
| 9919238 | Distillation apparatus | Sung Kyu Lee, Sung Kyun Kim, Jong Ku Lee | 2018-03-20 |
| 9895624 | Distillation device | Sung Kyu Lee, Sung Kyun Kim, Jong Ku Lee | 2018-02-20 |
| 9895625 | Method and apparatus for preparing isopropyl alcohol | Sung Kyu Lee, Jong Ku Lee | 2018-02-20 |
| 9884264 | Divided wall distillation column for producing high purity acrylic acid and fractional distillation method using the same | Sung Kyu Lee, Jong Ku Lee | 2018-02-06 |
| 9861907 | Divided wall distillation column for producing high purity normal butanol, and normal butanol distillation method | Sung Kyu Lee, Jong Ku Lee | 2018-01-09 |
| 9849402 | Trihalosilane refining device having divided wall distillation column | Sung Kyu Lee, Jong Ku Lee, Sung Kyun Kim | 2017-12-26 |
| 9812699 | Silicon nanostructure active materials for lithium ion batteries and processes, compositions, components and devices related thereto | Yimin Zhu, Chunsheng Du | 2017-11-07 |
| 9770674 | Purification device and purification method using the same | Sung Kyu Lee | 2017-09-26 |
| 9758458 | Method for purifying isopropyl alcohol | Jong Suh Park, Sung Kyu Lee, Jong Ku Lee | 2017-09-12 |
| 9612045 | Heat recovery apparatus | Sung Kyu Lee, Tae Woo Kim | 2017-04-04 |
| 9573869 | Bisphenol A preparation apparatus and preparation method | Jong Suh Park, Tae Woo Kim, Jong Ku Lee, Se-Ho Park | 2017-02-21 |
| 9511306 | Dividing wall distillation columns for production of high-purity 2-ethylhexanol and fractionation method using same | Sung Kyu Lee, Jong Ku Lee | 2016-12-06 |
| D749108 | Display screen with animated graphical user interface | Nicolas Bauer, Chao Wang, Neil Cueto | 2016-02-09 |
| D748120 | Display screen with animated graphical user interface | Nicolas Bauer, Chao Wang, Neil Cueto | 2016-01-26 |
| D748122 | Display screen with transitional graphical user interface | Nicolas Bauer, Chao Wang, Neil Cueto | 2016-01-26 |
| D748121 | Display screen with animated graphical user interface | Nicolas Bauer, Chao Wang, Neil Cueto | 2016-01-26 |
| 8992737 | Trihalosilane refining method | Sung Kyu Lee, Jong Ku Lee, Sung Kyun Kim | 2015-03-31 |
| 8974642 | Trihalosilane refining method | Sung Kyu Lee, Jong Ku Lee, Sung Kyun Kim | 2015-03-10 |
| 8968521 | Trihalosilane refining method | Sung Kyu Lee, Jong Ku Lee, Sung Kyun Kim | 2015-03-03 |
| 8932434 | Dividing wall distillation column for producing high purity acrylic acid and fractional distillation method using the same | Sung Kyu Lee, Jong Ku Lee | 2015-01-13 |
| 8894821 | Dividing wall column for preparing high-purity 2 ethylhexyl-acrylate and preparation method using same | Sung Kyu Lee, Jong Ku Lee, Sung Kyun Kim | 2014-11-25 |
| 8894823 | Method for manufacturing isopropyl alcohol | Sung Kyu Lee, Jong Ku Lee | 2014-11-25 |