| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 3 | |
| #2 | Canada | 2 | |
| #3 | Poland | 2 | |
| #4 | United States | 2 | |
| #5 | Argentina | 1 | |
| #6 | Australia | 1 | |
| #7 | Brazil | 1 | |
| #8 | Switzerland | 1 | |
| #9 | Czechoslovakia | 1 | |
| #10 | German Democratic Republic | 1 | |
| #11 | Germany | 1 | |
| #12 | Denmark | 1 | |
| #13 | Egypt | 1 | |
| #14 | EPO (European Patent Office) | 1 | |
| #15 | Finland | 1 | |
| #16 | United Kingdom | 1 | |
| #17 | Greece | 1 | |
| #18 | Hong Kong | 1 | |
| #19 | Ireland | 1 | |
| #20 | Israel | 1 | |
| #21 | India | 1 | |
| #22 | Italy | 1 | |
| #23 | Japan | 1 | |
| #24 | Luxembourg | 1 | |
| #25 | Mexico | 1 | |
| #26 | Netherlands | 1 | |
| #27 | Norway | 1 | |
| #28 | New Zealand | 1 | |
| #29 | African Intellectual Property Organization | 1 | |
| #30 | Portugal | 1 | |
| #31 | Sweden | 1 | |
| #32 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #33 | Turkey | 1 | |
| #34 | Yugoslavia (Serbia and Montenegro) | 1 | |
| #35 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Internal-combustion piston engines | |
| #2 | Machines | |
| #3 | Pumps | |
| #4 | Servomotors | |
| #5 | Gearing | |
| #6 | Unspecified technologies | |
| #7 | Climate change mitigation in transportation | |
| #8 | Supplying combustion engines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Geirnaert Marcel | 31 |
| #2 | Kenny James E | 4 |
| #3 | Geirnaert Marcel J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4489682A | Linear movement motor and a swash plate for a motor of this type | |
| CA1156563A | Internal-combustion engine with opposed pistons | |
| OA6541A | Power generator. | |
| ZA7802708B | Pressure fluid generator | |
| AU3595578A | Opposed piston swash-plate motor/pump |