| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 2 | |
| #2 | Australia | 1 | |
| #3 | Canada | 1 | |
| #4 | Germany | 1 | |
| #5 | Denmark | 1 | |
| #6 | Spain | 1 | |
| #7 | Finland | 1 | |
| #8 | France | 1 | |
| #9 | Ireland | 1 | |
| #10 | Iceland | 1 | |
| #11 | Italy | 1 | |
| #12 | Netherlands | 1 | |
| #13 | Norway | 1 | |
| #14 | Sweden | 1 | |
| #15 | United States | 1 | |
| #16 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Transport | |
| #3 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Servomotors | |
| #2 | Marine propulsion | |
| #3 | Positive-displacement engines | |
| #4 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tenfjord Jens Karl | 6 |
| #2 | Tenfjord J K | 2 |
| #3 | Tenfjord Jens K | 1 |
| #4 | Jens Karl Tenfjord | 1 |
| #5 | Tenfjord J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FI297374A | Vaetskedriven oscillerande vridmotor | |
| GB841928A | Improvements in variable v-belt transmissions |