Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886658 | Oral treatment method for reducing plaque with reduced staining | Debra J. Moore, Joel I. Shulman | 1989-12-12 |
| 4820698 | Antimicrobial agents and process for their manufacture | Charles Raymond Degenhardt | 1989-04-11 |