| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 16 | |
| #2 | United Kingdom | 3 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Chemical engineering | |
| #3 | Transport | |
| #4 | Digital networks | |
| #5 | Machines | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Supplying combustion engines | |
| #2 | Internal-combustion piston engines | |
| #3 | Separation | |
| #4 | Aeroplanes | |
| #5 | Ammunition fuzes | |
| #6 | Gearing | |
| #7 | Digital information transmission |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lelarge Henri-Alfred-Armand-Joseph | 15 |
| #2 | Henri Alfred Armand Joseph Lel | 3 |
| #3 | Lelarge Henri-Alfred-Armand | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB191500494A | Improvements in Carburettors. | |
| GB191209285A | Device for the Simultaneous Driving of Two Shafts Turning in Opposite Directions. | |
| GB191209284A | A New Two-stroke Cycle for Explosion Engines and Device for its Realisation. |