Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12053757 | Super absorbent polymer and method for producing same | Yong Hun Lee, Hyemin Lee, Chang Sun Han | 2024-08-06 |
| 11358121 | Super absorbent polymer and method for producing same | Yong Hun Lee, Hyemin Lee, Chang Sun Han | 2022-06-14 |
| 11142615 | Super absorbent polymer and method for preparing same | Soo Jin Lee | 2021-10-12 |
| 11066496 | Super absorbent polymer and method for preparing same | Hyemin Lee, Chang Sun Han | 2021-07-20 |
| 10975196 | Method for purifying polyalkylene carbonate | Seung Young Park | 2021-04-13 |
| 10829635 | Economical method of preparing a resin composition including polyalkylene carbonate with improved thermal stability and processability | Jun Wye Lee, Seung Young Park, Jin Woo Lee, Hyun Ju Cho, Yoon Jung Kim +6 more | 2020-11-10 |
| 10550230 | Preparation method of superabsorbent polymer and superabsorbent polymer prepared thereby | Yong Hun Lee, Hyung Ki Yoon, Chang Sun Han | 2020-02-04 |
| 10457773 | Method of preparing polyalkylene carbonate resin | Seung Young Park, Jin Woo Lee, Yoon Jung Kim, Taek Jun Jung, Yun Ki Cho +2 more | 2019-10-29 |
| 9663654 | Resin composition comprising polyalkylene carbonate | Hyun Ju Cho, Jin-Hwa Seo, Seung Young Park | 2017-05-30 |
| 9580566 | Oriented film | Kyung Seog Youk, Seung Young Park | 2017-02-28 |
| 9382385 | Lactide copolymer, and resin composition and film comprising same | Seung Young Park, Kyung Seog Youk, Seung Ho Choi | 2016-07-05 |
| 9382386 | Lactide copolymer, method for preparing same, and resin composition comprising same | Seung Young Park, Kyung Seog Youk, Seung Ho Choi | 2016-07-05 |
| 9074042 | Packaging film including a lactide copolymer | Seung Young Park, Sung-Cheol Yoon, Do-Yong Shim | 2015-07-07 |
| 9062147 | Lactide copolymer, a preparation method thereof, and a resin composition including the same | Seung Young Park, Sung-Cheol Yoon, Do-Yong Shim | 2015-06-23 |
| 7393615 | Mask for use in measuring flare, method of manufacturing the mask, method of identifying flare-affected region on wafer, and method of designing new mask to correct for flare | Won-tai Ki, Seong-woon Choi, Tae-Moon Jeong, Shun-Yong Zinn, Woo-Sung Han | 2008-07-01 |
| 6866968 | Photomask for off-axis illumination and method of fabricating the same | In-Kyun Shin, Hee-sun Yoon, Seong-woon Choi | 2005-03-15 |
| 6835507 | Mask for use in measuring flare, method of manufacturing the mask, method of identifying flare-affected region on wafer, and method of designing new mask to correct for flare | Won-tai Ki, Seong-woon Choi, Tae-Moon Jeong, Shun-Yong Zinn, Woo-Sung Han | 2004-12-28 |