| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 4 | |
| #2 | Denmark | 3 | |
| #3 | Finland | 3 | |
| #4 | Brazil | 2 | |
| #5 | Canada | 2 | |
| #6 | EPO (European Patent Office) | 2 | |
| #7 | Italy | 2 | |
| #8 | United States | 2 | |
| #9 | WIPO (World Intellectual Property Organization) | 2 | |
| #10 | Argentina | 1 | |
| #11 | Austria | 1 | |
| #12 | Australia | 1 | |
| #13 | Belgium | 1 | |
| #14 | Romania | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Shaping of plastics | |
| #2 | Certain plastics |
| # | Name | Total Patents |
|---|---|---|
| #1 | Boen Per | 17 |
| #2 | Boeen Per | 3 |
| #3 | Boen P | 3 |
| #4 | Ben Per | 1 |
| #5 | Boeen P | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FI884141A | Anordning vid plastextruder. | |
| US4798696A | Method for extrusion of plastic tubes, and an apparatus for carrying out said method | |
| CA1282216C | Method for extrusion of plastic tubes, and an apparatus for carrying out said method | |
| WO8501244A1 | Extruder assembly | |
| BR8008849A | Tube extrusion set |