| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Belgium | 1 | |
| #2 | Canada | 1 | |
| #3 | Switzerland | 1 | |
| #4 | Germany | 1 | |
| #5 | Spain | 1 | |
| #6 | France | 1 | |
| #7 | Greece | 1 | |
| #8 | Ireland | 1 | |
| #9 | Italy | 1 | |
| #10 | Netherlands | 1 | |
| #11 | Poland | 1 | |
| #12 | Sweden | 1 | |
| #13 | United States | 1 | |
| #14 | Yugoslavia (Serbia and Montenegro) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Control |
| # | Technology | |
|---|---|---|
| #1 | Controlling combustion engines | |
| #2 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Trappo Lucien | 6 |
| #2 | Lucien Trappo | 2 |
| Publication | Filing date | Title |
|---|---|---|
| YU1978A | Centifugal regulator | |
| GR64692B | Centrifugal regulator | |
| IE45235L | Improvements in or relating to centrifugal regulators |