Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5333670 | Vitreous fused silica | Jean-Claude Compagnon, Jean-Marie Vignot | 1994-08-02 |
| 5318279 | Receptacle for molten metals, material for this receptacle and method of producing the material | Jean-Claude Compagnon, Jean-Marie Vignot | 1994-06-07 |