Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888370 | Flame-resistant polyamides | Dieter Freitag, Thomas Joswig, Heinz-Josef Fullmann, Friedemann Muller | 1989-12-19 |
| 4873314 | Process for the production of polycarbonate solutions | Klaus Berg, Ulrich Grigo | 1989-10-10 |
| 4841000 | Process for the preparation of aromatic polyesters | Peter Tacke, Ulrich Grogp | 1989-06-20 |
| 4822852 | High-impact dimensionally stable polyamide molding compositions | Dieter Wittmann, Uwe Westeppe, Christian Lindner, Josef Merten, Harald Selbeck | 1989-04-18 |