| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 8 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | Norway | 4 | |
| #4 | Denmark | 3 | |
| #5 | Finland | 2 | |
| #6 | Australia | 1 | |
| #7 | Canada | 1 | |
| #8 | Switzerland | 1 | |
| #9 | China | 1 | |
| #10 | Germany | 1 | |
| #11 | France | 1 | |
| #12 | United Kingdom | 1 | |
| #13 | United States | 1 | |
| #14 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Machine tools | |
| #5 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Making metal sheets | |
| #3 | Unspecified technologies | |
| #4 | Heat-exchanger without contact | |
| #5 | Heat-exchange device details | |
| #6 | Pipes | |
| #7 | Unspecified technologies | |
| #8 | Domestic heating systems | |
| #9 | Separation | |
| #10 | Turning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hillerstroem Bjoern Ingvar | 7 |
| #2 | Seborn Bo | 3 |
| #3 | Hillerstroem Bjoern I | 2 |
| #4 | Wallberg Roger | 2 |
| #5 | Hillerstrom Bjorn Ingvar | 2 |
| #6 | Johansson Christer | 2 |
| #7 | Kroona Sture | 2 |
| #8 | Molander Sven-Eric | 2 |
| #9 | Bengt Harald Jonsson | 1 |
| #10 | Olsson Stig Goran | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0718017A2 | Apparatus for removing air from a current liquid and process for making the apparatus | |
| SE9501248D0 | Safety valves for pressurised vessel | |
| AU1204792A | Device for alternately controlling two cooperating valves, especially safety valves on pressure vessels | |
| SE9001085D0 | Valve with cam-controlled hand lever for delayed shut-off | |
| CN1003390B | Heat exchanger | |
| US4645001A | Heat exchanger | |
| GB8300062D0 | Clamping ring coupling |