| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 24 | |
| #2 | WIPO (World Intellectual Property Organization) | 5 | |
| #3 | Canada | 3 | |
| #4 | Australia | 2 | |
| #5 | Brazil | 2 | |
| #6 | Indonesia | 2 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | African Intellectual Property Organization | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hansen Henning | 31 |
| #2 | Kaland Frode | 12 |
| #3 | Vold Gisle | 5 |
| #4 | Birkeland Petter | 3 |
| #5 | Nilsen Magne Petter | 3 |
| #6 | Aase Magnus | 3 |
| #7 | Vikane Trygve | 2 |
| #8 | Oftedal Terje | 2 |
| #9 | Kapstad Bjarne | 2 |
| #10 | Salte Jone | 2 |
| Publication | Filing date | Title |
|---|---|---|
| EP1173654A1 | Controlled breaking of cables in a well casing | |
| WO0063531A1 | Oil well interzone leak detection | |
| OA11789A | Hydraulic switch device. | |
| BR9910245A | Method for installing a sensor in connection with the plugging of a well |