Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5769626 | Evacuation system with exhaust gas cleaning and operating process for it | Volker Kinzig | 1998-06-23 |
| 4230739 | Method of evaporating melts of alloys of metals having different vapor pressures | Hans Aichert, Walter Dietrich, Peter Sommerkamp, Herbert Stephan | 1980-10-28 |
| 4208042 | Evaporating crucible | Hans Aichert, Walter Dietrich, Otto-Horst Hoffmann, Herbert Stephan | 1980-06-17 |
| 4184448 | Vacuum coating apparatus having a plurality of lock chambers | Hans Aichert, Walter Dietrich, Herbert Stephan, Friedrich Stark | 1980-01-22 |