Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362873 | Process for the preparation of basic oxazine dyestuffs | — | 1982-12-07 |
| 4289694 | Process for the industrial preparation of water insoluble azo dyestuffs containing cyano groups from the corresponding halogen compounds | — | 1981-09-15 |
| 4274831 | Process for dyeing or printing synthetic fiber materials by means of disperse dyes, and colorant compositions utilizable for this purpose | Daniel Richer | 1981-06-23 |