Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4427809 | Thermoplastic moulding compositions of co-graft polymers | Heinrich Alberts, Christian Leuschke | 1984-01-24 |
| 4368292 | Thermoplastic moulding compositions of cograft polymers of cellulose esters | Heinrich Alberts, Christian Leuschke | 1983-01-11 |
| 4360635 | Thermoplastic moulding compositions of cellulose ester graft copolymers or mixtures thereof with cellulose esters | Heinrich Alberts, Christian Leuschke, Herbert Bartl | 1982-11-23 |
| 4357267 | Thermoplastic moulding compositions of cellulose esters | Heinrich Alberts, Friedemann Muller, Horst Peters, Christian Leuschke, Hans-Peter Baasch | 1982-11-02 |
| 4239861 | Polyvinyl chloride-polycarbonate alloys | Hans-Eberhard Braese, Dietrich Hardt, Richard Prinz, Volker Serini | 1980-12-16 |
| 4193897 | Contact lenses formed of mixtures of cellulose esters and ethylene/vinyl acetate copolymers | Frank Wingler, Theobald Eicher, Friedemann Muller, Richard Prinz | 1980-03-18 |