| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 3 | |
| #2 | United States | 2 | |
| #3 | Australia | 1 | |
| #4 | Brazil | 1 | |
| #5 | Canada | 1 | |
| #6 | China | 1 | |
| #7 | EAPO (Eurasian Patent Organization) | 1 | |
| #8 | EPO (European Patent Office) | 1 | |
| #9 | United Kingdom | 1 | |
| #10 | Mexico | 1 | |
| #11 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Blakseth Ola | 12 |
| #2 | Johnsen Frode | 12 |
| #3 | Johsen Frode | 1 |
| #4 | Frode Blakseth Ola Johnsen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2008088226A1 | Drilling mud collector for a slip joint of a riser | |
| CN1628208A | Method and arrangement by a workover riser connection |