Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660817 | Desensitizing teeth with degradable particles | Jean L. Spencer | 1997-08-26 |
| 5616315 | Particles including degradable material and anti-microbial agent | Jean L. Spencer | 1997-04-01 |