| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 6 | |
| #2 | Argentina | 3 | |
| #3 | Australia | 3 | |
| #4 | Norway | 3 | |
| #5 | Panama | 3 | |
| #6 | WIPO (World Intellectual Property Organization) | 3 | |
| #7 | Bulgaria | 2 | |
| #8 | Brazil | 2 | |
| #9 | Canada | 2 | |
| #10 | China | 2 | |
| #11 | EAPO (Eurasian Patent Organization) | 2 | |
| #12 | Egypt | 2 | |
| #13 | Mexico | 2 | |
| #14 | Slovakia | 2 | |
| #15 | Denmark | 1 | |
| #16 | Gulf Cooperation Council | 1 | |
| #17 | Iceland | 1 | |
| #18 | Ukraine | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Environmental technology | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Water treatment | |
| #3 | Flotation | |
| #4 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Oseroed Stein Egil | 36 |
| #2 | Oserod Stein Egil | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2005079946A1 | Separation of crude oil at the well head | |
| EP1208897A1 | Combined degassing and flotation tank | |
| EP1180498A1 | A plant for purifying water contaminated by droplets of hydrocarbonaceous liquid |