| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 5 | |
| #2 | Brazil | 2 | |
| #3 | Germany | 2 | |
| #4 | Finland | 2 | |
| #5 | France | 2 | |
| #6 | United Kingdom | 2 | |
| #7 | Italy | 2 | |
| #8 | Netherlands | 2 | |
| #9 | Sweden | 2 | |
| #10 | Australia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling |
| # | Name | Total Patents |
|---|---|---|
| #1 | Haughom Kjell | 18 |
| Publication | Filing date | Title |
|---|---|---|
| NL8601036A | Pipe processing device. | |
| NL8501506A | Pipe treatment system. |