Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650513 | Process for preparing perylene-3,4-dicarboxylic acid derivatives, the derivatives thus prepared and their use | Heinz Langhals | 1997-07-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650513 | Process for preparing perylene-3,4-dicarboxylic acid derivatives, the derivatives thus prepared and their use | Heinz Langhals | 1997-07-22 |