Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845030 | Use of aniline derivates as coupling components in oxidative color formation reactions | Hans-Georg Batz, Rupert Herrmann, Fritz Topfmeier | 1989-07-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845030 | Use of aniline derivates as coupling components in oxidative color formation reactions | Hans-Georg Batz, Rupert Herrmann, Fritz Topfmeier | 1989-07-04 |