| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 5 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 3 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Thermal processes | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Fluid heaters | |
| #3 | Cyclically operating valves | |
| #4 | Power supply for electric vehicles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pfingst Louis | 11 |
| Publication | Filing date | Title |
|---|---|---|
| CA105137A | Brake | |
| GB190607416A | Improvements in and relating to Electric Brakes. | |
| CA90213A | Power brake | |
| CA90214A | Power brake | |
| GB190423589A | Improvements in and relating to Brakes for Railway and like Vehicles. | |
| GB190423590A | Improvements in and relating to Brakes for Railway and like Vehicles. | |
| US786989A | Compound-geared brake-spindle and ratchet-handle. | |
| US740912A | Rail-bond. | |
| US783306A | Hot-water boiler and heater. | |
| CA45314A | Car fender | |
| CA37878A | Coupling for electric cars |