Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7525744 | Focusing drive | Andreas Weiler, Thorsten Ebenhoch | 2009-04-28 |
| 6452770 | Power buss inhibit through data input/output lines | James Michael Devine, Peter J. Massa | 2002-09-17 |
| 5215947 | Refractory parts for devices for regulation or interruption of a jet of steel, made of refractory material | Jacques Schoennahl | 1993-06-01 |
| 4670407 | Refractories with a high content of alumina and the process for their production | Jean-Pierre Kiehl | 1987-06-02 |