| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 2 | |
| #2 | Australia | 1 | |
| #3 | Brazil | 1 | |
| #4 | Canada | 1 | |
| #5 | China | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | Republic of Korea | 1 | |
| #8 | Mexico | 1 | |
| #9 | Philippines | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Internal-combustion piston engines | |
| #2 | Machines | |
| #3 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Shepherd Graydon Aubrey | 9 |
| #2 | Graydon Aubrey Shepherd | 2 |
| Publication | Filing date | Title |
|---|---|---|
| WO2018016973A1 | Reciprocating engines and compressors | |
| US2017030194A1 | Reciprocating engine |