Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698174 | Process for separating fullerenes | Wolfgang Muller, Richard Broll, Eckhard Weber, Roland Müller | 1997-12-16 |
| 5641347 | Barium-free dental glass having good x-ray absorption | Danuta Grabowski, Marc Clement, Hartmut Paschke | 1997-06-24 |