Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880864 | Thermoplastic polycarbonates and blends with enhanced flame retardant properties | Ronald L. Price, Sivaram Krishnan | 1989-11-14 |
| 4879342 | Thermoplastic polycarbonate moulding compositions | Hans-Jurgen Kress, Horst Peters, Christian Lindner, Josef Buekers | 1989-11-07 |
| 4861829 | Thermoplastic polycarbonate moulding materials | Hans-Jurgen Kress, Horst Peters, Christian Lindner, Josef Buekers | 1989-08-29 |
| 4804692 | Gamma-radiation resistant polycarbonate compositions | Charles E. Lundy, Sivaram Krishnan | 1989-02-14 |