Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690913 | Multilayer bicarbonate/peroxide dentifrice | Donald P. Hsu, Rajnish Kohli, Richard J. Crawford, Michael Collins, David Viscio | 1997-11-25 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690913 | Multilayer bicarbonate/peroxide dentifrice | Donald P. Hsu, Rajnish Kohli, Richard J. Crawford, Michael Collins, David Viscio | 1997-11-25 |