Issued Patents All Time
Showing 51–56 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4366276 | Flame-resistant moulding materials based on thermoplastic aromatic polyesters and polyesters carbonates, a process for their production and their use in the production of moulded bodies | Dieter Freitag, Werner Nouvertne, Peter Tacke, Frank Kleiner, Manfred Schmidt | 1982-12-28 |
| 4350793 | Flame-retardant composition of polyphenylene ether, polystyrene resin and polyphosphonate | Manfred Schmidt | 1982-09-21 |
| 4334053 | Process for the preparation of aromatic polyesters and the use thereof for the production of injection molded articles, films and coatings | Dieter Freitag, Karsten-Josef Idel, Harald Medem, Ludwig Bottenbruch | 1982-06-08 |
| 4331614 | Aromatic polyphosphonates and a process for their production | Manfred Schmidt, Ludwig Bottenbruch, Dieter Freitag, Harry Rohr, Hans-Dieter Block | 1982-05-25 |
| 4328174 | Aromatic polyester phosphonates | Manfred Schmidt, Dieter Freitag, Ludwig Bottenbruch, Harry Rohr, Harald Medem | 1982-05-04 |
| 4260695 | Process for the preparation of aromatic polyesters | Harald Medem, Dieter Freitag | 1981-04-07 |