| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 2 | |
| #2 | WIPO (World Intellectual Property Organization) | 2 | |
| #3 | Australia | 1 | |
| #4 | Brazil | 1 | |
| #5 | Canada | 1 | |
| #6 | China | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Mexico | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Measuring force, work and fluid pressure |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rolfsvåg Trond Arne | 6 |
| #2 | Trond Arne Rolfsvåg | 3 |
| #3 | Toffolo Gilberto | 2 |
| #4 | Rolfsvag Trond Arne | 2 |
| Publication | Filing date | Title |
|---|---|---|
| NO20190627A1 | Continuous water pressure measurement in a hydrocarbon reservoir | |
| NO20161910A1 | A probe arrangement for pressure measurement of a water phase inside a hydrocarbon reservoir |