Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6465381 | Alkali-free aluminoborosilicate glass, its use and process for its preparation | Gerhard Lautenschlager, Klaus Schneider, Andreas Sprenger | 2002-10-15 |
| 6461349 | Medical handpiece with a light guide which can be displaced in an axial direction | Jens Elbrecht, Berlind Kalve | 2002-10-08 |