| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 4 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | United States | 2 | |
| #4 | Australia | 1 | |
| #5 | Brazil | 1 | |
| #6 | Canada | 1 | |
| #7 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Harestad Kristian | 8 |
| #2 | Kleppa Erling | 3 |
| #3 | Kristian Harestad | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2017241215A1 | A method and a centralizer system for centralizing a casing in a well bore | |
| NO20150226A1 | Cementing device |