Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8756837 | Fastening device for a collector of solid remains swiveling at the end of a mobile arm in particular fastening device for articulated buckets of a crust shovel | Stephane David | 2014-06-24 |
| 8647481 | Pot tending machine for working on electrolysis cells for the production of aluminum by igneous electrolysis | Stephane David | 2014-02-11 |