| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 4 | |
| #2 | Australia | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Denmark | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Woie Rune | 12 |
| #2 | Hegre Thor Martin | 10 |
| #3 | Hegre Thor | 2 |
| Publication | Filing date | Title |
|---|---|---|
| AU5539199A | Method adapted in order to prevent water from coning into an oil recovery well | |
| GB0105717D0 | Method of injecting water and gas |