Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810448 | Processes for the production of dry-spun polyacrylonitrile profiled fibres and filaments | Ulrich Reinehr, Kurt Bernklau, Toni Herbertz, Hermann-Josef Jungverdorben | 1989-03-07 |
| 4804511 | Process for dry spinning yarns of improved uniformity and reduced adhesion | Christian Pieper, Rolf-Burkhard Hirsch, Norbert Rink | 1989-02-14 |