Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968352 | Diaryl pigments with improved heat stability and transparency containing coupled mixed bis-diazotized diamines and acid-substituted aromatic amines | Boyd A. Keys | 1990-11-06 |
| 4414033 | Process for preparing ferriferrocyanide pigments | Arvind S. Patil, John H. Bantjes | 1983-11-08 |