Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6677448 | Method for reactivating a catalyst for cyclizing hydrolysis of an aminonitrile into a lactam and use of the regenerated catalyst for making lactams | Christophe Nedez | 2004-01-13 |
| 6559333 | Method for purifying aliphatic aminonitriles | Philippe Leconte, Philippe Marion | 2003-05-06 |
| 6521779 | Hemihydrogenation method for dinitriles | Vincent Boschat, Bernard Darrier, Bernard Chevaljer, Jean Louis Bobet | 2003-02-18 |
| 6479658 | Method for cyclizing hydrolysis of an aminonitrile compound into lactam | Aline Seigneurin, Lionel Sever | 2002-11-12 |
| 4857296 | CeO catalytic desulfurization of industrial gases | Patrice Nortier, Eric Quemere | 1989-08-15 |
| 4581343 | Process for the preparation of a pollution control catalyst for internal combustion engine exhaust system/catalytic converter | Gilbert Blanchard, Richard Doziere, Emmanuel Goldenberg, Michel Prigent | 1986-04-08 |
| 4492769 | Pollution control catalyst for internal combustion engine exhaust system/catalytic converter and process for its preparation | Gilbert Blanchard, Michel Prigent | 1985-01-08 |
| 4492770 | Catalyst and use thereof in treating internal combustion engine exhaust gases | Gilbert Blanchard, Michel Prigent | 1985-01-08 |
| 4426319 | Catalyst for treatment of exhaust gases from internal combustion engines | Gilbert Blanchard, Michel Prigent | 1984-01-17 |
| 4378307 | Pollution control catalyst for internal combustion engine exhaust system/catalytic converter | Philippe Courty, Michel Prigent, Bernard Raynal | 1983-03-29 |
| 4255359 | Non-polluting oxyhydrochlorination process | — | 1981-03-10 |
| 4247730 | Hydrodealkylation of alkylaromatic hydrocarbons | — | 1981-01-27 |