| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United Kingdom | 5 | |
| #2 | Austria | 3 | |
| #3 | Canada | 3 | |
| #4 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Control | |
| #3 | Engines, pumps and turbines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Venting or aerating devices | |
| #3 | Systems controlling non-electric variables | |
| #4 | Rotary-pistons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Roux Henri | 14 |
| #2 | Homsy Francois Habib | 7 |
| #3 | Homsy Francois H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA117504A | Pressure regulating valve for steam engine | |
| CA116046A | Valve | |
| CA115217A | Rotary engine | |
| US917143A | Safety-valve for steam-engines and the like. | |
| US942413A | Rotary engine. | |
| US940195A | Reducing or pressure-regulating valve for steam-engines and the like. | |
| GB190726651A | Improvements in and relatingto Reducing or Pressure Regulating Valves for Steam Engine's and the like. | |
| GB190725194A | Improvements in and relating to Rotary Engines. | |
| GB190721480A | Improvements in and relating to Safety-valves for Steam Engines and the like. |