Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888243 | Process for antistatic treatment of plastic mouldings | Friedrich Jonas | 1989-12-19 |
| 4876033 | Moulded bodies containing carbon | Heinz-Jurgen Dziurla, Dieter Freitag, Claus Burkhardt, Bernhard Schulte | 1989-10-24 |
| 4859263 | Process for the manufacture of printed circuits | Heinz-Jurgen Dziurla, Hans-Leo Weber, Dieter Freitag | 1989-08-22 |
| 4828901 | Injection-moulded article and a process for the production thereof | Joachim Wank, Eckart Reese | 1989-05-09 |
| 4806412 | Laminates | Joachim Wank, Rudolf Hombach | 1989-02-21 |