| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 3 | |
| #2 | Australia | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | France | 2 | |
| #5 | Brazil | 1 | |
| #6 | Canada | 1 | |
| #7 | Algeria | 1 | |
| #8 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Basic materials chemistry | |
| #3 | Chemical engineering | |
| #4 | Materials and metallurgy |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stengel Patrice | 13 |
| Publication | Filing date | Title |
|---|---|---|
| WO0198546A1 | Method for sulphuric acid treatment and recycling of blast furnace sludge | |
| FR2824549A1 | Process for treating used aqueous cutting oils | |
| BR0109662A | Process for depollution of polluted hydrocarbon soil | |
| FR2816855A1 | Process for the regeneration of hydrocarbon polluted soils based on waste from recycling of expanded packaging |