| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 10 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Supplying combustion engines | |
| #2 | Clutches and brakes | |
| #3 | Controlling combustion engines | |
| #4 | Vehicle wheels | |
| #5 | Aeroplanes | |
| #6 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ettore Ambrosetti | 10 |
| #2 | Ambrosetti Ettore | 2 |
| #3 | Poretti Ambrosetti Successore | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA445403A | Multi-cylinder engine fitted arrangement | |
| CA430983A | Injection pump |