Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6685919 | Plaque-controlling liquid tooth cleaning gel | Hans-Theo Leinen, Peter Wuelknitz | 2004-02-03 |
| 6682719 | Plaque-controlling liquid tooth cleaning agent | Hans-Theo Leinen | 2004-01-27 |