| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 8 | |
| #2 | Switzerland | 7 | |
| #3 | Austria | 4 | |
| #4 | Germany | 4 | |
| #5 | Belgium | 1 | |
| #6 | Spain | 1 | |
| #7 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Engines, pumps and turbines | |
| #3 | Environmental technology | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Marine propulsion | |
| #2 | Machines for liquids | |
| #3 | Reduction of greenhouse gas emissions | |
| #4 | Servomotors | |
| #5 | Special wind, spring and weight motors | |
| #6 | Aeroplanes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Liaaen Nils Johannes | 16 |
| #2 | Nils Johannes Liaaen | 7 |
| Publication | Filing date | Title |
|---|---|---|
| ES221202A1 | A step adjustment mechanism for adjustable step propellers (Machine-translation by Google Translate, not legally binding) |