| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 5 | |
| #2 | Australia | 2 | |
| #3 | Brazil | 2 | |
| #4 | Canada | 2 | |
| #5 | Mexico | 2 | |
| #6 | China | 1 | |
| #7 | Norway | 1 | |
| #8 | United States | 1 | |
| #9 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vatne Per A | 14 |
| #2 | Holen Dag Magnus | 3 |
| Publication | Filing date | Title |
|---|---|---|
| EP2513409A2 | Mouse hole dampening system | |
| BRPI0911888A2 | provision in a hose connection between a wellhead and a surface installation | |
| EP2245259A1 | Slip device for suspending a drill or casing string in a drill floor | |
| CN101688437A | A device for a top drive drilling machine for continuous circulation of drilling mud |