| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 3 | |
| #2 | United States | 3 | |
| #3 | Australia | 2 | |
| #4 | Canada | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 | |
| #7 | Denmark | 1 | |
| #8 | France | 1 | |
| #9 | United Kingdom | 1 | |
| #10 | Russian Federation | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering |
| # | Technology | |
|---|---|---|
| #1 | Separating solids |
| # | Name | Total Patents |
|---|---|---|
| #1 | Andren Ingmar | 14 |
| #2 | Andren I | 3 |
| #3 | Ingmar Andeen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5230431A | Vertical screening device with feeding screw | |
| RU2023518C1 | Sorting device | |
| SE8604513D0 | VERTICAL SALES DEVICE | |
| US4534859A | Cleaning machine with a vertical cylinder screen |