Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8381571 | Method and apparatus for assessing the penetration of tooth cleaning elements in the gingival pocket | Joachim Wilhelm, Bernd Trebitz | 2013-02-26 |
| 4803341 | Cordless curling iron with separate electric heating station | Karlheinz Barowski | 1989-02-07 |