Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5714570 | Method for the preparation of polyester by use of composite catalyst | Chung Yup Kim, Hyun-Nam Cho, Hyung Joon Kim | 1998-02-03 |
| 5286836 | Process for forming polyesters | Sang Soon Park, Chung Yup Kim, Hyun-Nam Cho | 1994-02-15 |