| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 1 | |
| #2 | Brazil | 1 | |
| #3 | China | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Republic of Korea | 1 | |
| #6 | Russian Federation | 1 | |
| #7 | Singapore | 1 | |
| #8 | Taiwan | 1 | |
| #9 | United States | 1 | |
| #10 | WIPO (World Intellectual Property Organization) | 1 | |
| #11 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Internal-combustion piston engines | |
| #2 | Machines | |
| #3 | Gearing | |
| #4 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Powell Darren | 11 |
| Publication | Filing date | Title |
|---|---|---|
| EP2419607A1 | A co-axial crankless engine |