Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693808 | Process for the preparation of peryleneimides, novel di-, tri- and tetrachromophoric perylene dyes and their use | — | 1997-12-02 |
| 5650513 | Process for preparing perylene-3,4-dicarboxylic acid derivatives, the derivatives thus prepared and their use | Leonhard Feiler | 1997-07-22 |