| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Italy | 5 | |
| #2 | United States | 3 | |
| #3 | Germany | 1 | |
| #4 | United Kingdom | 1 | |
| #5 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Rotary pistons | |
| #2 | Venting or aerating devices | |
| #3 | Pistons and sealings | |
| #4 | Unspecified technologies | |
| #5 | Unspecified technologies | |
| #6 | Cleaning | |
| #7 | Rotary-pistons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Turolla M | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US3790316A | Gear pump | |
| US3752174A | Relief valves | |
| US3716245A | Ring seal |