Issued Patents All Time
Showing 25 most recent of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12155470 | Method and apparatus for transmitting and receiving signal by using multiple antennas in wireless communication system | Jongwoong Shin, Sunam Kim, Sungjin Kim, Sung Ryong Hong | 2024-11-26 |
| 11505657 | System and rotating blade unit for preparing silica aerogel | Ye Hon Kim, Dong Kwon Lee, Je Kyun Lee | 2022-11-22 |
| 10577462 | Production method of poly(alkylene carbonate) particles | Woo Sung Hwang, Seung Young Park, Dong Kwon Lee, Hyun Ju Cho, Kwang Hyon Kim +2 more | 2020-03-03 |
| 10506970 | Method and apparatus for monitoring consciousness | Seunghwan KIM, Woo-Sung Jung, Heonsoo Lee, Gyujeong Noh, Ki Chul Cha +1 more | 2019-12-17 |
| 10384146 | Divided wall distillation column | Sung Kyu Lee, Joon Ho Shin, Sung Kyun Kim | 2019-08-20 |
| 10371442 | Separation method and separation process system for recovering ethylene | Hoi In Jeong, Mi-Kyung Kim, Jeong-Seok Lee | 2019-08-06 |
| 10343923 | System for preparing silica aerogel | Dong Kwon Lee, Ye Hon Kim, Je Kyun Lee | 2019-07-09 |
| 10322982 | Energy saving method and apparatus for preparing styrene and alpha-methylstyrene concurrently | Mi-Kyung Kim, Jae Ik Lee, Jeong-Seok Lee | 2019-06-18 |
| 10315972 | Separation method and separation process system for recovering ethylene | Hoi In Jeong, Jeong-Seok Lee, Mi-Kyung Kim | 2019-06-11 |
| 10308566 | Method of separating normal butene using isomerization and process system for separating normal butene | Dae Hyeon KIM, Soo Hwan Hwang, Jeong-Seok Lee | 2019-06-04 |
| 10259897 | Method of preparing polybutadiene | Woo Sung Hwang, Jun Seok Ko, Hoi In Jeong | 2019-04-16 |
| 10246534 | Apparatus for preparing polybutadiene | Woo Sung Hwang, Jun Seok Ko, Hoi In Jeong | 2019-04-02 |
| 10227270 | Method of separating normal butene using isomerization and process system for separating normal butene | Dae Hyeon KIM, Soo Hwan Hwang, Jeong-Seok Lee | 2019-03-12 |
| 10150720 | Device for preparing n-butanol | Sung Kyu Lee, Joon Ho Shin | 2018-12-11 |
| 10112122 | Device for preparing alkanol | Sung Kyu Lee, Joon Ho Shin | 2018-10-30 |
| 10086325 | Membrane separation device | Sang Beom Lee, Moon-kyoon Chun, Sung Ho Lee, Joon Ho Shin | 2018-10-02 |
| 10066031 | Method of separating ethylene oligomerization reactor effluent | Eun Kyo Kim, Jeong-Seok Lee, Mi-Kyung Kim | 2018-09-04 |
| 10066514 | Method of recycling energy in process of butadiene preparation | Mi-Kyung Kim, Jeong-Seok Lee, Jae Ik Lee, Dae Hyeon KIM | 2018-09-04 |
| 9919238 | Distillation apparatus | Sung Kyu Lee, Joon Ho Shin, Sung Kyun Kim | 2018-03-20 |
| 9919260 | Method of recovering absorption solvent in butadiene production process by oxidative dehydrogenation | Dae Hyeon KIM, Jeong-Seok Lee, Mi-Kyung Kim, Jae Ik Lee | 2018-03-20 |
| 9895624 | Distillation device | Sung Kyu Lee, Joon Ho Shin, Sung Kyun Kim | 2018-02-20 |
| 9895625 | Method and apparatus for preparing isopropyl alcohol | Sung Kyu Lee, Joon Ho Shin | 2018-02-20 |
| 9884264 | Divided wall distillation column for producing high purity acrylic acid and fractional distillation method using the same | Sung Kyu Lee, Joon Ho Shin | 2018-02-06 |
| 9861907 | Divided wall distillation column for producing high purity normal butanol, and normal butanol distillation method | Sung Kyu Lee, Joon Ho Shin | 2018-01-09 |
| 9849402 | Trihalosilane refining device having divided wall distillation column | Sung Kyu Lee, Joon Ho Shin, Sung Kyun Kim | 2017-12-26 |