| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 7 | |
| #2 | WIPO (World Intellectual Property Organization) | 2 | |
| #3 | Australia | 1 | |
| #4 | Canada | 1 | |
| #5 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Environmental technology | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Sewers | |
| #2 | Hydraulic engineering | |
| #3 | Reduction of greenhouse gas emissions | |
| #4 | Unspecified technologies | |
| #5 | Water treatment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sondov Sten Y | 9 |
| #2 | Sondov Sten Yngvar | 3 |
| Publication | Filing date | Title |
|---|---|---|
| CA2271803A1 | Apparatus for the distribution of water or other liquids | |
| WO8903917A1 | Flushing arrangement |