Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4628831 | Hearth and process for fluidized-bed treatment of a fuel | Roger M. Puff, Jean-Claude Kita, Ange Virgilio | 1986-12-16 |
| 4382777 | Process for modifying the properties of a swelling coal, an installation for carrying out the process and a chamber for treatment of coal by fluidization and crushing | Roger M. Puff, Jean-Claude Kita | 1983-05-10 |
| 4338160 | Process for drying and/or preheating coal | Roger M. Puff | 1982-07-06 |