| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | WIPO (World Intellectual Property Organization) | 2 | |
| #3 | Canada | 1 | |
| #4 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Measurement | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies | |
| #3 | Testing of structures | |
| #4 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Brandsdal Viggo | 12 |
| #2 | Lerbrekk Morten | 1 |
| #3 | Osland Bjoern | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2018223628A1 | A Valve System of a Well Pipe Through an Hydrocarbon Containing Formation and a Method to Operate the Same | |
| US2011000663A1 | Device for plug removal |