| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 18 | |
| #2 | WIPO (World Intellectual Property Organization) | 7 | |
| #3 | Brazil | 3 | |
| #4 | Canada | 3 | |
| #5 | Tunisia | 3 | |
| #6 | EPO (European Patent Office) | 2 | |
| #7 | United States | 2 | |
| #8 | Australia | 1 | |
| #9 | Chile | 1 | |
| #10 | Ecuador | 1 | |
| #11 | Egypt | 1 | |
| #12 | United Kingdom | 1 | |
| #13 | Morocco | 1 | |
| #14 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Measurement | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Analysing materials | |
| #3 | Unspecified technologies | |
| #4 | Geophysics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Revheim Sven | 36 |
| #2 | Trones Tom | 7 |
| #3 | Revheim Olav | 6 |
| #4 | Revheim Ommund | 6 |
| #5 | Tennfjord Geir Arne | 5 |
| #6 | Moland Bjoern | 5 |
| #7 | Bode Tom Henning | 5 |
| #8 | Revheim Espen | 5 |
| #9 | Fattnes Oddvar | 4 |
| #10 | Berven Christian | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB201020914D0 | Trigger device for activating an action | |
| WO2010002270A2 | Trigger device for activating an action | |
| WO2008085059A1 | Motion detector | |
| WO2008082307A1 | Pressure driven apparatus for sequential control of a cementing head | |
| CA2656827A1 | Sealing device | |
| EP2074276A1 | Wellbore tool for filling, circulating and backflowing fluids | |
| US2009000782A1 | Cementing valve | |
| EP1915507A1 | Device for conducting cementing operations and inflow regulation |