| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 3 | |
| #2 | Canada | 2 | |
| #3 | France | 2 | |
| #4 | Austria | 1 | |
| #5 | Switzerland | 1 | |
| #6 | Netherlands | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Cyclically operating valves |
| # | Name | Total Patents |
|---|---|---|
| #1 | Elliott Gilbert Ruggles | 7 |
| #2 | Gilbert Ruggles Elliott | 1 |
| #3 | Elliott Gilbert R | 1 |
| #4 | Ruggles Elliott Gilbert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA146526A | Internal combustion engine | |
| US1043816A | Internal-combustion engine. | |
| GB190214964A | Improvements in Rotary Valves for Engine's worked by Expansive Fluid. | |
| GB190105677A | Improvements in Valves for Steam and other Engines. | |
| CA211520A | Internal combustion engine |