Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8246836 | Process for treating substances contaminated by heavy metals | Christine Tahon, Patrick Sharrock, Ange Nzihou | 2012-08-21 |
| 7344489 | Sludge treatment method | Rene Derie, Ange Nzihou | 2008-03-18 |
| 7232407 | Method for inerting mineral residues | — | 2007-06-19 |
| 6962562 | Sludge inerting method | Rene Derie | 2005-11-08 |
| 6254846 | Process for purifying fumes and for manufacturing an aqueous sodium chloride solution | — | 2001-07-03 |
| 5935539 | Reactive composition and method for the purification of a nitric oxide containing gas | — | 1999-08-10 |