Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871500 | Process for providing a high-temperature resistant polyimide film | Haio Harms, Manfred Schobesberger, Herbert Sollradl | 1989-10-03 |
| 4801502 | Non-flammable, high-temperature resistant polyimide fibers made by a dry spinning method | Thomas Jeszenszky, Heinrich Schmidt, Siegfried Baumann, Johann Kalleitner | 1989-01-31 |