Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665844 | Polymer films for detecting chemical substances | Werner Prass, Yuan Liu, Shizuo Ogura, Tetsu Yamamoto, Akihiko Tokida +1 more | 1997-09-09 |
| 5621131 | Conjugated polymers having spiro centers and their use as electroluminescence materials | Willi Kreuder, Donald Lupo, Josef Salbeck, Hermann Schenk | 1997-04-15 |