| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 9 | |
| #2 | EPO (European Patent Office) | 5 | |
| #3 | Japan | 3 | |
| #4 | United States | 3 | |
| #5 | Hong Kong | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 | |
| #7 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Andersson Lars | 9 |
| #2 | Andersson Bjoern | 9 |
| #3 | Hansson Hans Oliver | 3 |
| #4 | Hansson Hans | 2 |
| #5 | Andersson L | 1 |
| #6 | Andersson Bjorn | 1 |
| #7 | Andersson B | 1 |
| #8 | Bjoern Andersson | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2013141795A1 | A valve arrangement | |
| CN103906957A | A through-flow valve arrangement | |
| SE1151001A1 | valve assembly | |
| EP1375988A1 | A valve device | |
| EP0867569A2 | Air valve | |
| EP0754895A2 | An air-ventilating valve | |
| EP0750074A1 | Reflux valve | |
| EP0319494A1 | Valve arrangement incorporating an air-delivery duct |