Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5286854 | Basic azo dyes with a coupling component of the hydroxynaphthalenecarboxylic acid series | Erwin Hahn, Udo Mayer | 1994-02-15 |
HH
Heidi Hengelsberg
Overall (1994): #127,490 of 165,921Top 80%
1
Patents 1994