| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Italy | 4 | |
| #2 | Germany | 2 | |
| #3 | Canada | 1 | |
| #4 | Switzerland | 1 | |
| #5 | Spain | 1 | |
| #6 | Ireland | 1 | |
| #7 | Japan | 1 | |
| #8 | Netherlands | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements | |
| #3 | Materials and metallurgy | |
| #4 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Controlling combustion engines | |
| #2 | Casting metal | |
| #3 | Cyclically operating valves | |
| #4 | Internal-combustion piston engines | |
| #5 | Cylinders for combustion engines | |
| #6 | Pipes | |
| #7 | Turning | |
| #8 | Special machines | |
| #9 | Compressed gas holders | |
| #10 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Raggi Lodovico | 6 |
| #2 | Rodobiko Ratsuji | 1 |
| #3 | Lodovico Raggi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2952198A1 | DEVICE FOR INCREASING EFFICIENCY IN OTTO OR DIESEL COMBUSTION ENGINES AND OTTO OR DIESEL COMBUSTION ENGINE PROVIDED WITH THIS DEVICE | |
| IE30864L | Control of thermal expansion of bodies | |
| CA824978A | Process and control means for the manufacture of tubing |