Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839157 | Stable hydrogen peroxide dental gel containing fumed silicas | Shirley Mei-King Ng | 1989-06-13 |
DD
Denise-Marie DiTomasso
Overall (1989): #121,037 of 140,708Top 90%
1
Patents 1989