Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861858 | Wholly aromatic thermotropic polyesters | Hans-Jakob Kock, Michael Portugall, Erhard Seiler, Gerd Blinne | 1989-08-29 |
| 4816555 | Wholly aromatic mesomorphic polyester amides and preparation thereof | Hans-Jakob Kock | 1989-03-28 |
| 4801676 | Fully aromatic thermotropic polyester imide | Hans-Jakob Kock, Michael Portugall, Erhard Seiler, Gerd Blinne | 1989-01-31 |