| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 7 | |
| #2 | United Kingdom | 4 | |
| #3 | United States | 4 | |
| #4 | Germany | 3 | |
| #5 | EPO (European Patent Office) | 3 | |
| #6 | Denmark | 2 | |
| #7 | Finland | 2 | |
| #8 | France | 2 | |
| #9 | Japan | 2 | |
| #10 | Norway | 2 | |
| #11 | Croatia | 1 | |
| #12 | Netherlands | 1 | |
| #13 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Thermal processes | |
| #3 | Mechanical elements | |
| #4 | Control | |
| #5 | Chemical engineering | |
| #6 | Environmental technology | |
| #7 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Olson Sven | 6 |
| #2 | Loennebring Arne | 4 |
| #3 | Segerstrom Lars | 2 |
| #4 | Segerstroem Lars H | 2 |
| #5 | Lagerstedt T | 2 |
| #6 | Edman Hans | 2 |
| #7 | Johansson Bo | 2 |
| #8 | Lagerstedt Torgny | 2 |
| #9 | Johansson B | 2 |
| #10 | Bo Yohanson | 1 |
| Publication | Filing date | Title |
|---|---|---|
| HRP960101B1 | Screw pump | |
| US4623305A | Device for pumping oil | |
| DE3520994A1 | HYDRAULIC SCREW MACHINE | |
| YU126784A | Screw pump | |
| NL8300403A | Fuel apparatus for marine diesel engines. | |
| FI820147L | Foerfarande och anordning foer blandning av vaetskor |