Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846650 | Oral compositions and methods for reducing dental calculus | James J. Benedict, Rodney D. Bush | 1989-07-11 |
| 4847070 | Anticalculus compositions | Joseph W. Pyrz, Anthony Charles Lanzalaco | 1989-07-11 |