Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5592748 | Heat treatment of solid catalyst or adsorbent particles in the presence of fluid in a vibrating helical coil | Martin Mitzkat, Pierre Dufresne | 1997-01-14 |
| 5508243 | Heat treatment of solid catalyst or adsorbent particles in the presence of fluid in a vibrating helical coil | Martin Mitzkat, Pierre Dufresne | 1996-04-16 |
| 4986424 | Process and apparatus for separating materials of different shapes or sizes | Georges Berrebi | 1991-01-22 |
| 4839031 | Process for performing the separation of extruded materials which may or may not show imperfections | Georges Berrebi | 1989-06-13 |