| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 4 | |
| #2 | Australia | 3 | |
| #3 | United States | 3 | |
| #4 | WIPO (World Intellectual Property Organization) | 3 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | Canada | 1 | |
| #7 | China | 1 | |
| #8 | Czechia | 1 | |
| #9 | Hungary | 1 | |
| #10 | Poland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Sewers | |
| #2 | Unspecified technologies | |
| #3 | Hydraulic engineering | |
| #4 | Reduction of greenhouse gas emissions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sondov Sten Y | 11 |
| #2 | Sondov Sten Yngvar | 7 |
| #3 | Sondov Sten Yingvar | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO0046455A1 | Device for extending torsion- or bending sleeves in a pulse discharger | |
| WO0044999A1 | Apparatus for shock-like flushing in a liquid system | |
| WO0014347A1 | Apparatus for flushing in a liquid system | |
| PL346567A1 | Apparatus for flushing in a liquid system |