Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12338323 | Method for preparing polyamide by anion ring-opening polymerization and polyamide prepared thereby | Seung Hoe Do, Jin Seo Lee, Kyung Ho Kwon, Do Kyoung Kim, Kyoung Won Yim | 2025-06-24 |
| 12215194 | Method for producing polyamide comprising amide-based molecular weight modifier, and polyamide produced thereby | Kyung Ho Kwon, Seung Hoe Do, Jin Seo Lee, Dae Hak Kim, Kyoung Won Yim +1 more | 2025-02-04 |
| 11814480 | Method for producing polyamide with controlled activator addition, and polyamide produced thereby | Do Kyoung Kim, Seung Hoe Do, Jin Seo Lee, Kyung Ho Kwon, Dae Hak Kim +1 more | 2023-11-14 |
| 11718713 | Method for producing polyamide by coordinated anionic ring-opening polymerization, and polyamide produced thereby | Dae Hak Kim, Seung Hoe Do, Jin Seo Lee, Kyung Ho Kwon, Kyoung Won Yim +1 more | 2023-08-08 |
| 11433639 | Lightweight sandwich steel sheet using polyamide, and manufacturing method therefor | Dae Hak Kim, Seung Hoe Do, Jin Seo Lee, Kyoung Won Yim, Kyung Ho Kwon +1 more | 2022-09-06 |