| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | Norway | 3 | |
| #3 | Australia | 2 | |
| #4 | Brazil | 2 | |
| #5 | United States | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 | |
| #7 | Argentina | 1 | |
| #8 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Geophysics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ellingsen Olav | 15 |
| Publication | Filing date | Title |
|---|---|---|
| CA2280079A1 | Enhanced oil recovery method | |
| US6499536B1 | Method to increase the oil production from an oil reservoir | |
| AU5782498A | Process for stimulation of oil wells |