| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 5 | |
| #2 | WIPO (World Intellectual Property Organization) | 5 | |
| #3 | Denmark | 4 | |
| #4 | Finland | 3 | |
| #5 | United States | 3 | |
| #6 | Australia | 2 | |
| #7 | Canada | 1 | |
| #8 | China | 1 | |
| #9 | Japan | 1 | |
| #10 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Transport | |
| #4 | Machine tools | |
| #5 | Engines, pumps and turbines | |
| #6 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Venting or aerating devices | |
| #3 | Ships | |
| #4 | Metal-working | |
| #5 | Pistons and sealings | |
| #6 | Springs | |
| #7 | Non-positive-displacement pumps | |
| #8 | Transferring liquids |
| # | Name | Total Patents |
|---|---|---|
| #1 | Soerensen Emil Aarestrup | 15 |
| #2 | Petersen Anders Ib Damborg | 10 |
| #3 | Pedersen Hans-Henrik Raagaard | 8 |
| #4 | Sorensen Emil Aarestrup | 5 |
| #5 | Soerensen Eric Aarestrup | 3 |
| #6 | Sorensen Eric Aarestrup | 1 |
| #7 | Pedersen Hans-Henrick Raagaard | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6702554B1 | Tank and a centrifugal pump for emptying the tank | |
| DK91294A | Safety equipment for a tank having a system for collecting the gas expelled from the tank during loading | |
| DK81794A | Pressure relief valve for pressure relief between a closed room and the ambient atmosphere | |
| WO9202436A1 | An overfill protecting arrangement for a liquid storage tank | |
| DK135790D0 | Vacuum valve for use in a security plant to reduce the danger of emissions from damage under the water line on tank ships | |
| DK87789D0 | Pressure valve pressure equality between a closed room and the surrounding atmosphere |