| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 7 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Canada | 1 | |
| #5 | Denmark | 1 | |
| #6 | Finland | 1 | |
| #7 | Italy | 1 | |
| #8 | Norway | 1 | |
| #9 | United States | 1 | |
| #10 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Agriculture | |
| #3 | Engines, pumps and turbines | |
| #4 | Environmental technology | |
| #5 | Basic materials chemistry | |
| #6 | Chemical engineering | |
| #7 | Machines | |
| #8 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wigram Stig | 17 |
| #2 | Wigram S | 1 |
| Publication | Filing date | Title |
|---|---|---|
| SE8800035D0 | Stageless variable gear | |
| SE8405977D0 | Reaction turbine without central shaft | |
| SE8405979D0 | Vacuum shock appts. | |
| EP0214957A1 | Pressure pulser. | |
| CA1202165A | Spreader device in a storage container for uniform filling of the container with granular storage goods |