Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12343230 | Partial dental prosthesis | — | 2025-07-01 |
| 10765492 | Dental veneers and methods of manufacture | — | 2020-09-08 |
| 8142833 | Clear silicone material for the registration of fingerprints | Dierk Lubbers, Ralf Kollefrath | 2012-03-27 |
| 7789663 | Process for the retraction of sulcus | Ralf Kollefrath, Dierk Lubbers | 2010-09-07 |
| 7549862 | Process for the retraction of sulcus | Ralf Kollefrath, Dierk Lubbers | 2009-06-23 |