Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5139238 | Ceramic filters in refractory bodies for cleaning molten metal | — | 1992-08-18 |
| 4730754 | Refractory immersion tube providing laminar flow of molten metal | Jacques Brihay, Manfred Winkelmann | 1988-03-15 |