Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5348581 | Rare earth sesquisulfide compositions comprising alkali/alkaline earth metal values | Thierry Chopin, Hervé Guichon | 1994-09-20 |
| 5280002 | Thermally stable ceric oxide-based compositions and process for their preparation | Lionel Bonneau, Michele Pijolat, Marie Prin, Michel Soustelle | 1994-01-18 |