Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5344877 | Molding material from a particulate graft polymer | Wolfgang Fischer, Norbert Guentherberg, Norbert Niessner, Karl Ruppmich | 1994-09-06 |
| 5342898 | Particulate graft polymer, and thermoplastic molding material produced therefrom having improved toughness | Karl Ruppmich, Norbert Guentherberg, Norbert Niessner | 1994-08-30 |
| 5336718 | Impact modifier and molding material containing it | Norbert Niessner, Wolfgang Fischer, Norbert Guentherberg, Karl Ruppmich | 1994-08-09 |
| 5276256 | Flameproofed chlorine-and bromine-free molding composition | Norbert Niessner, Rainer Neumann, Karl Ruppmich, Doris Zeltner | 1994-01-04 |