| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Italy | 3 | |
| #2 | Germany | 2 | |
| #3 | Japan | 2 | |
| #4 | USSR (Union of Socialist Soviet Republics) | 2 | |
| #5 | United States | 2 | |
| #6 | South Africa | 2 | |
| #7 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Environmental technology | |
| #3 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ghelli Giovanni | 2 |
| #2 | Perrone Diego | 2 |
| #3 | Jiyobanni Geeri | 1 |
| #4 | Ghelli G | 1 |
| #5 | Perrone Dego | 1 |
| #6 | Deiego Beroone | 1 |
| #7 | Gelli Dzhovanni | 1 |
| #8 | Perrone D | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2704775A1 | METHOD OF DETOXIFICATION OF WASTE PRODUCTS FROM THE PROCESSING OF CHROME ORES BY TREATMENT WITH SULFUR BY WET ROUTE | |
| ZA7604123B | A method for recovering and exploiting waste of the chromic anhydride production |