| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Italy | 7 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | African Regional Industrial Property Organization | 1 | |
| #4 | Australia | 1 | |
| #5 | Canada | 1 | |
| #6 | China | 1 | |
| #7 | EAPO (Eurasian Patent Organization) | 1 | |
| #8 | Egypt | 1 | |
| #9 | Mexico | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Environmental technology | |
| #3 | Civil engineering | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Water treatment | |
| #3 | Earth drilling | |
| #4 | Working stone | |
| #5 | Mining |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tongiani Stefano | 18 |
| Publication | Filing date | Title |
|---|---|---|
| MX2011008380A | Combined action filter press. | |
| WO2008114303A2 | Hydropneumatic filter press | |
| AU9644598A | Combined rotation drill |