| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 3 | |
| #2 | Finland | 3 | |
| #3 | Sweden | 2 | |
| #4 | Germany | 1 | |
| #5 | Denmark | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Netherlands | 1 | |
| #9 | Norway | 1 | |
| #10 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #11 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Marine propulsion | |
| #2 | Ships |
| # | Name | Total Patents |
|---|---|---|
| #1 | Virtanen Markku | 8 |
| #2 | Savikurki Jarmo | 3 |
| #3 | Harjula Arjo | 3 |
| #4 | Mattila Markku | 3 |
| #5 | Jaervi Antti Kalevi Henrik | 2 |
| #6 | Heikinheimo Juha Akseli | 2 |
| #7 | Hirvonen Erkki Veikko Elias | 2 |
| #8 | Hirvonen Erkki V E | 1 |
| #9 | Virtanen Markuu | 1 |
| #10 | Jaervi Antti K H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FI951261A0 | Automatic control system on a vessel equipped with rotatable propeller devices | |
| FI914328A0 | Automatic course pilot on a ship equipped with rotatable propeller devices | |
| FI894407A0 | Nozzle propeller assembly |