| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 10 | |
| #2 | United Kingdom | 1 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Non-positive-displacement pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bowen William Spencer | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US1267506A | Propeller device. | |
| GB190808401A | Improvements in and relating to Trawl Nets. | |
| CA279510A | Heat interchange device | |
| CA284465A | Gas burner | |
| CA380431A | Spray drying apparatus | |
| CA473360A | Compressor, pump and turbine apparatus | |
| CA255052A | Vacuum spray dryer | |
| CA257909A | Process and means for cooling liquids | |
| CA377470A | Fluid treating mechanism | |
| CA378469A | Dust collector | |
| CA444905A | Venturi dust collector | |
| CA400754A | Sewage disposal system |