| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 3 | |
| #2 | Australia | 2 | |
| #3 | United States | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Canada | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Control | |
| #4 | Engines, pumps and turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ottestad Nils T | 11 |
| #2 | Wichstroem Finn | 6 |
| #3 | Wichstrom Finn | 5 |
| #4 | Rudshaug Bjorn | 1 |
| Publication | Filing date | Title |
|---|---|---|
| AU1805800A | A system for controlling the working conditions for mechanical pumps, and a regulation valve for such a system | |
| AU6373799A | Method and valve device for counteracting harmful pressure pulses in a hydraulicsystem |