Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475528 | Preparation for regenerating collagen | — | 2002-11-05 |
| 5585117 | Use of a mixture of calcium hydroxide and oleum pedum tauri for collagen reformation in vivo | — | 1996-12-17 |
| 4311528 | Root filling paste for dental surgery | Hans-Helmut Barth | 1982-01-19 |