Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6037000 | Dye migration | Howard Chang, Arthur Vinen | 2000-03-14 |
| 5223245 | Color change mouthrinse | Nader Ibrahim | 1993-06-29 |
| 5154917 | Color change mouthrinse | Nader Ibrahim | 1992-10-13 |