Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5679759 | Polycarbonate moulding materials with improved toughness | Dieter Wittmann, Heinrich Alberts, Herbert Eichenauer, Ulrich Jansen | 1997-10-21 |
| 5672645 | Flame resistant polycarbonate/ABS moulding compounds resistant to stress cracking | Dieter Wittmann, Manfred Oller, Heinrich Alberts | 1997-09-30 |
| 5658974 | Flameproofed, thermoplastic polycarbonate moulding compounds | Karl Fuhr, Dieter Wittmann, Heinrich Alberts | 1997-08-19 |
| 5621029 | Flame retardant thermoplastic polycarbonate moulding compositions | Karl Fuhr, Dieter Wittmann, Heinrich Alberts | 1997-04-15 |