Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12312442 | Method for separating organic zinc catalyst using filtering membrane | Kyung Min Min, Seung Young Park, Sang Cheol Shin | 2025-05-27 |
| 12139604 | Polyalkylene carbonate-based resin, and molded article produced therefrom | Won Hee WOO, Seung Young Park, Sang Cheol Shin, Kyung Min Min, Won Seok Kim | 2024-11-12 |
| 12076714 | Method for separating organozinc catalyst from polyalkylene carbonate polymerization solution | Kyung Min Min, Seung Young Park, Sang Cheol Shin, Won Seok Kim, Won Hee WOO | 2024-09-03 |
| 11976164 | Method of preparing organic zinc catalyst and method of preparing polyalkylene carbonate resin by using the organic zinc catalyst prepared thereby | Seung Young Park, Sang Cheol Shin, Kyung Min Min | 2024-05-07 |
| 11944961 | Method for regenerating waste organic zinc catalyst through surface modification | — | 2024-04-02 |
| 11840629 | Polyalkylene carbonate-based resin, and method of preparing the same | Seung Young Park | 2023-12-12 |
| 11219887 | Method for preparing organic zinc catalyst, organic zinc catalyst prepared by the method and method for preparing polyalkylene carbonate resin using the catalyst | Jungup Bang, Kyosung Park, Seung Young Park, Gyo Hyun Hwang, Byung Hee Choi +1 more | 2022-01-11 |
| 11036472 | Random number generator generating random number by using at least two algorithms, and security device comprising the random number generator | Joong-Chul Yoon, Seung Won Lee | 2021-06-15 |
| 10941261 | Polyalkylene carbonate-based resin film | Hyun Min Kim, Hyun Ju Cho, Seung Young Park | 2021-03-09 |
| 10941291 | Polyalkylene carbonate resin composition and polyalkylene carbonate resin molded article | Seung Young Park | 2021-03-09 |
| 10865274 | Poly(alkylene carbonate) resin composition, preparation method thereof, molded article formed therefrom, and preparation method of molded article using the same | Hyun Min Kim, Hyun Ju Cho, Seung Young Park | 2020-12-15 |
| 10844220 | Polyketone resin composition and polyketone resin molded article | Seung Young Park | 2020-11-24 |
| 10836860 | Organic zinc catalyst, preparation method thereof, and method for preparing polyalkylene carbonate resin using the catalyst | Seung Young Park | 2020-11-17 |
| 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, Jung Min Sohn +6 more | 2020-11-10 |
| 10640610 | Organozinc-supported catalyst, method for producing the same, and method for preparing polyalkylene carbonate resin using catalyst | Jun Wye Lee, Il Ha Lee, Seung Young Park, Ki Hwan Kim | 2020-05-05 |
| 10633488 | Organic zinc catalyst, preparation method thereof, and method for preparing polyalkylene carbonate resin using the catalyst | Seung Young Park | 2020-04-28 |
| 10598421 | Icemaker assembly having a plunger | — | 2020-03-24 |
| 10100147 | Organic zinc catalyst, preparation method thereof, and method of preparing poly(alkylene carbonate) resin using the same | Seong Kyun Kang, Jun Wye Lee, Eun Kyoung Park, Seung Young Park, Hyeon Choi | 2018-10-16 |
| 10047032 | Preparation method of organic zinc catalyst and poly(alkylene carbonate) resin | Seong Kyun Kang, Jun Wye Lee, Seung Young Park, Hyeon Choi | 2018-08-14 |
| 10047196 | Organic zinc catalyst, and manufacturing method thereof and manufacturing method of polyalkylene carbonate resin using the same (as amended) | Seung Young Park, Hyun Ju Cho | 2018-08-14 |
| 9845234 | Refrigerator | — | 2017-12-19 |
| 9803048 | Organic zinc catalyst and preparation method thereof | Seong Kyun Kang, Hyun Ju Cho, Jong Won Lee, Seung Young Park, Hyeon Choi | 2017-10-31 |
| 9751981 | Manufacturing method of organic zinc catalyst and manufacturing method of polyalkylene carbonate resin | Seung Young Park, Hyun Ju Cho | 2017-09-05 |
| 9732187 | Manufacturing method of polyalkylene carbonate resin | Hyun Ju Cho, Seong Kyun Kang, Seung Young Park, Hyeon Choi | 2017-08-15 |
| 9571281 | CRT-RSA encryption method and apparatus | In-Je Yang, Hyun-Dong So, Hyo Sun Hwang | 2017-02-14 |