| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 7 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | EPO (European Patent Office) | 3 | |
| #4 | United States | 3 | |
| #5 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Medical technology | |
| #3 | Measurement | |
| #4 | Thermal processes | |
| #5 | Consumer goods |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wadstroem Petra | 16 |
| #2 | Swadstroem Petra | 1 |
| #3 | Petra Wadstrom | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2009072954A1 | Container for purification of water by sunlight | |
| US2010067561A1 | Temperature recorder | |
| US2007262010A1 | Container for purifying water by utilization of sunlight | |
| EP1503709A1 | Compression bandage for breast operated |