Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888370 | Flame-resistant polyamides | Dieter Freitag, Thomas Joswig, Karsten-Josef Idel, Friedemann Muller | 1989-12-19 |
| 4798686 | Organic polymers with electrical properties | Jurgen Hocker, Ludwig Rottmaier, Klaus Reinking, Jurgen Kirsch | 1989-01-17 |