| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 3 | |
| #2 | Australia | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Denmark | 1 | |
| #5 | Finland | 1 | |
| #6 | United States | 1 | |
| #7 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Shaping clay | |
| #2 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Haaland Per | 10 |
| #2 | Per Haaland | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0212763A2 | Means for sealing the gap between two axially displaceable sealing surfaces |