Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871426 | Process for reprocessing waste material | Hans Lechert, Volkert Woebs-Gosch, Song Qun, Hansjorg Sinn | 1989-10-03 |
| 4849487 | 1-olefin stereoblock polymer, and a process for its preparation | Maria Buschermohle | 1989-07-18 |
| 4841004 | Process for the preparation of a 1-olefin stereoblock polymer | Maria Buschermohle | 1989-06-20 |