Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4925926 | Preparation of cationic azo or hydrazone dyes in which the alkylation and the separation of the cationic dye are carried out continuously | Roland Ronco, Pierre Pessonneaux | 1990-05-15 |