Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32192 | Refractory piece permeable to gases | Pierre Vayssiere, Jean-Claude Grosjean, Roland Grave, F. Schleimer, F. Goedert +3 more | 1986-06-24 |
| 4340208 | Refractory piece permeable to gases | Pierre Vayssiere, Jean-Claude Grosjean, Roland Grave, F. Schleimer, F. Goedert +3 more | 1982-07-20 |