Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10729523 | Dental restoration and method for the production of a dental restoration | Ralf Bohner, Cornelia KOPFMANN, Martin SCHAUFELBERGER | 2020-08-04 |
| 10716644 | Dental instrument | Ralf Kollefrath, Ulrich Müller | 2020-07-21 |
| 6585299 | Pipe connector | Erich Quadflieg, Gerhard Krug, Friedrich Lenze | 2003-07-01 |
| 6155613 | Pipe joint | Erich Quadflieg, Christoph Bunsen, Thomas Gigowski, Friedrich Lenze | 2000-12-05 |