| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 5 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | United States | 2 | |
| #5 | Canada | 1 | |
| #6 | China | 1 | |
| #7 | Denmark | 1 | |
| #8 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Consumer goods | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Dry-docking of vessels | |
| #2 | Live-saving devices | |
| #3 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tistrand Rolf | 5 |
| #2 | Kellstroem Anders | 5 |
| #3 | Elfstrom I | 2 |
| #4 | Kellström Anders | 2 |
| #5 | Tistrand R | 2 |
| #6 | Elfstrom B I | 1 |
| #7 | Elfstroem Ingvar | 1 |
| #8 | Oesterlund Dennis | 1 |
| #9 | Tistrand R A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP1436047A1 | Balanced valve device and breathing apparatus comprising such valve device | |
| WO02078787A1 | Modular valve and valve modules | |
| CA2175205A1 | A valve arrangement and a breathing regulator which includes such a valve arrangement |