Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5055281 | Process for the preparation of calcium fluosilicate as a raw material for obtaining calcium fluoride and pure fluosilicic acid | — | 1991-10-08 |
| 4822903 | Fluorinated silica catalyst and preparation of aromatic/aliphatic nitriles in the presence thereof | Roland Jacques, Michel Reppelin | 1989-04-18 |
| 4612184 | High specific surface hydrargillite | — | 1986-09-16 |
| 4545964 | Process for the preparation of porous products based on cobalt fluoride or lead fluoride | Pierre Bergez, Alain Deguelte | 1985-10-08 |
| 4504595 | Fluorinated silica catalyst and preparation of aromatic/aliphatic nitriles in the presence thereof | Roland Jacques, Michel Reppelin | 1985-03-12 |
| 4438042 | Preparation of aromatic/aliphatic nitriles | Roland Jacques, Michel Reppelin | 1984-03-20 |
| 4436669 | Preparation of aromatic/aliphatic nitriles | Roland Jacques, Michel Reppelin | 1984-03-13 |
| 4344928 | Process for preparing alumina particulates, at least a fraction of which being ultrafine boehmite | Thierry Dupin, Gilbert Bouge | 1982-08-17 |
| 4315839 | Spheroidal alumina particulates having bifold porosity and process for their preparation | Gilbert Bouge, Roland Jacques, Regis Poisson | 1982-02-16 |
| 4314913 | Catalyst for removing NO.sub.x from gas streams | Jean-Yves Derrien | 1982-02-09 |
| 4292295 | Highly reactive alumina and process for the preparation thereof | Michel Pajot | 1981-09-29 |
| 4263266 | Process for the preparation of crystalline, alkaline, aluminosilicate | Max Michel, Georges Vrisakis, Gilbert Bouge | 1981-04-21 |