| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 4 | |
| #2 | Australia | 2 | |
| #3 | Brazil | 2 | |
| #4 | Canada | 2 | |
| #5 | China | 2 | |
| #6 | Ecuador | 2 | |
| #7 | Norway | 2 | |
| #8 | United States | 2 | |
| #9 | WIPO (World Intellectual Property Organization) | 2 | |
| #10 | Chile | 1 | |
| #11 | Colombia | 1 | |
| #12 | EAPO (Eurasian Patent Organization) | 1 | |
| #13 | Hong Kong | 1 | |
| #14 | Israel | 1 | |
| #15 | India | 1 | |
| #16 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Civil engineering | |
| #3 | Control | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Systems controlling non-electric variables | |
| #3 | Venting or aerating devices | |
| #4 | Unspecified technologies | |
| #5 | Fluid dynamics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Mathiesen Vidar | 23 |
| #2 | Aakre Haavard | 23 |
| #3 | Werswick Bjørnar | 11 |
| #4 | Werswick Bjornar | 7 |
| #5 | Haavard Aakre | 3 |
| #6 | Werswick Bjoernar | 3 |
| #7 | Vidar Mathiesen | 3 |
| #8 | Bjørnar Werswick | 2 |
| #9 | Werswick Bj?Rnar | 1 |
| #10 | Nomme Christian | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NO20201163A1 | A pressure actuated valve for use during installation and commission of a production string | |
| EP3540177A1 | A flow control device and method | |
| BR112014023434B1 | technical field fluid flow control device and method | |
| CN104364464A | A flow control device and method |