Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6367671 | Stopper rod | Eric Hanse | 2002-04-09 |
| 6165409 | Molten steel transfer element and its manufacturing | Eric Hanse | 2000-12-26 |
| 5826820 | Homing device system for missile | Jerome Maffert | 1998-10-27 |
| 5071043 | Stopper rod with an improved gas distribution | Claude Dumazeau | 1991-12-10 |
| 5024422 | One-piece stopper rod | Mark K. Fishler, Jean-Marie Koten | 1991-06-18 |
| 4946083 | One-piece stopper rod | Mark K. Fishler, Jean-Marie Koten | 1990-08-07 |