| # | Country | Total Patents | |
|---|---|---|---|
| #1 | China | 2 | |
| #2 | Denmark | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | Canada | 1 | |
| #6 | Norway | 1 | |
| #7 | Poland | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Transport | |
| #3 | Machines | |
| #4 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Ships | |
| #3 | Unspecified technologies | |
| #4 | Non-positive-displacement pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Soerensen Emil Aarestrup | 5 |
| #2 | Sorensen Emil Aarestrup | 3 |
| #3 | Raagaard Hans-Henrik Pedersen | 3 |
| #4 | Serensen Emil A | 1 |
| #5 | Raagaard E A Seruensen H-H P | 1 |
| #6 | Aarestrup Soerensen Emil | 1 |
| #7 | Soerensen Eric Aarestrup | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO02095275A1 | A pressure valve | |
| DK200001919A | a valve | |
| DK199901599A | Liquid tank and centrifugal pump for discharging the liquid |