Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876040 | Two-stage process for preparing aromatic polyamide fiber | Moo S. Rhim, Hak Mook Kim, Du Hyun Kim, Seog C. Yoo, Sang Hoon Kim +4 more | 1989-10-24 |
| 4816552 | Aromatic polyester compounds and process for preparing them | Seo-Won Kim, Jung Il Jin, Suck-Hyun Lee | 1989-03-28 |