Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4908139 | Method and apparatus for separating and recovering particulate material | — | 1990-03-13 |
| 4865740 | Method and apparatus for separating and recovering particulate material | — | 1989-09-12 |
| 4690914 | Process for the preparation of an absorbing and adsorbing agent; and the product produced therefrom | Daniel Demeuldre | 1987-09-01 |