Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870144 | Process for producing an isobutylene polymer having functional terminal end groups | Masayoshi Imanaka, Katsuhiko Isayama | 1989-09-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870144 | Process for producing an isobutylene polymer having functional terminal end groups | Masayoshi Imanaka, Katsuhiko Isayama | 1989-09-26 |