| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 20 | |
| #2 | United States | 3 | |
| #3 | Brazil | 2 | |
| #4 | Argentina | 1 | |
| #5 | India | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Measurement | |
| #4 | Civil engineering | |
| #5 | Environmental technology | |
| #6 | Control | |
| #7 | Chemical engineering | |
| #8 | Thermal processes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Roosa V | 26 |
| #2 | Virello M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3851338A | Flushing device | |
| US3773063A | Flushing device | |
| US3750195A | Flushing device |