| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 7 | |
| #2 | Canada | 5 | |
| #3 | China | 4 | |
| #4 | United States | 4 | |
| #5 | WIPO (World Intellectual Property Organization) | 4 | |
| #6 | Brazil | 3 | |
| #7 | EAPO (Eurasian Patent Organization) | 3 | |
| #8 | EPO (European Patent Office) | 2 | |
| #9 | Mexico | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Halse Helge-Ruben | 29 |
| #2 | Helge-Ruben Halse | 4 |
| Publication | Filing date | Title |
|---|---|---|
| WO2007126319A1 | Wedge device | |
| CN101346528A | Wedge device | |
| CA2630787A1 | Method and device for positioning a power tong at a pipe joint | |
| CN101069037A | pipe joint lubrication device | |
| US2007079671A1 | Method of disconnecting a pipe length |