| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Netherlands | 8 | |
| #2 | France | 7 | |
| #3 | Germany | 5 | |
| #4 | Italy | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology | |
| #3 | Mechanical elements | |
| #4 | Transport | |
| #5 | Machines | |
| #6 | Furniture and games |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gele Pierre | 5 |
| Publication | Filing date | Title |
|---|---|---|
| DE2540560A1 | IC engine fuel mixture correction system - uses current from exhaust probe to regulate gas supply to inlet | |
| DE2518852A1 | METHOD AND DEVICE FOR THE CONTROL OF AN ELECTRIC VALVE FOR THE REGULATION OF THE AIR-FUEL MIXTURE OF COMBUSTION MACHINES | |
| NL7500261A | Carburettor with elastic reset units for auxiliary flap - acted on by engine, exhaust gas, and environmental parameters | |
| US3897940A | Level controlling shock-absorber |