Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5021143 | Process of fractionation and extraction of hydrocarbons allowing obtaining a cut of increased octane index and a kerosene of improved smoke point | Sigismond Franckowiak, Paul Mikitenko, Georges Cohen | 1991-06-04 |
| 4755278 | Process for fractionating solid asphalts | — | 1988-07-05 |
| 4725379 | Process and apparatus for making a solution or dispersion of a hydrosoluble powder | Bernard Boute, Pierre Galtier | 1988-02-16 |
| 4290973 | Process for manufacturing petroleum sulfonates and the resultant products | Robert Aude, Jean-Pierre Desmarquest, Jean-Pierre Franck | 1981-09-22 |