| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 3 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | Brazil | 2 | |
| #4 | EPO (European Patent Office) | 2 | |
| #5 | Australia | 1 | |
| #6 | Canada | 1 | |
| #7 | Russian Federation | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stangeland Jan | 11 |
| #2 | Jan Stangeland | 2 |
| #3 | Stangelann Yan | 1 |
| #4 | Langeland Geir | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NO20181205A1 | Well tool | |
| NO20171418A1 | Milling tool | |
| NO338348B1 | Well cleaning tool and use of tool |