Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4287121 | Water-soluble polyfluoro acid azo dyestuffs | Robert Frederic Michel Sureau | 1981-09-01 |
| 4285696 | Dyestuffs derived from triphenylmethane, their preparation and use | Gilbert V. H. Kremer, Robert Frederic Michel Sureau | 1981-08-25 |
| 4212647 | Water-insoluble azo dyestuffs which are derivatives of 1-aryl-3-trifluoromethyl-5-pyrazolones | Jacques A. N. Bernardin | 1980-07-15 |