Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870147 | Process for producing highly conductive polyacetylene film | Nicolas Theophilou | 1989-09-26 |
| 4866129 | Impact resistant thermoplastic molding materials | Franz Brandstetter, Adolf Echte, Franz Haaf | 1989-09-12 |