| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | Canada | 2 | |
| #4 | Australia | 1 | |
| #5 | Brazil | 1 | |
| #6 | China | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | Republic of Korea | 1 | |
| #9 | Mexico | 1 | |
| #10 | New Zealand | 1 | |
| #11 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Internal-combustion piston engines | |
| #2 | Machines | |
| #3 | Aeroplanes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Stephens Thomas Glenn | 11 |
| #2 | Stephens Thomas G | 3 |
| #3 | Glenn Stephens Thomas | 2 |
| #4 | Stephens Thomas | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2009101089A1 | Two-cycle swash plate internal combustion engine | |
| US2007034178A1 | Two-cycle swash plate internal combustion engine | |
| US2007164146A1 | Rotary wing aircraft | |
| US2006054117A1 | Two-cycle swash plate internal combustion engine |