Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889911 | Process for the production of fully aromatic, thermotropic polyesters and polyester carbonates | Harald Pielartzik, Wolfgang Ebert, Rolf-Volker Meyer, Edgar Ostlinning | 1989-12-26 |
| 4886869 | Thermotropic aromatic polyester carbonates, a process for their preparation and their use | Harald Pielartzik, Rolf Dhein, Rolf-Volker Meyer, Edgar Ostlinning | 1989-12-12 |
| 4856342 | Process and device for measuring the adhesion of fibres in fibre-reinforced synthetic materials | Ludwig Bottenbruch, Andreas Hampe, Klaus Schumacher | 1989-08-15 |