| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 6 | |
| #2 | United States | 6 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Electrical machinery and energy | |
| #4 | Mechanical elements | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Guiding railway traffic | |
| #3 | Cycles | |
| #4 | Toys | |
| #5 | Electrical vehicle propulsion | |
| #6 | Mechanical control devices | |
| #7 | Power supply for electric vehicles | |
| #8 | Electric switches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Porter Joseph Y | 12 |
| #2 | Hetts Charles V | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA169800A | Controller mechanism | |
| CA169575A | Trolley catcher | |
| US1122420A | Trolley-catcher. | |
| CA156040A | Electric motor mechanism | |
| US1053642A | Controller-regulator for electric motors. | |
| CA135577A | Controller | |
| US939626A | Electrically-actuated train-switch. | |
| US855973A | Mechanical movement. | |
| US712845A | Electric switch-actuator. | |
| US698137A | Bicycle handle-bar. | |
| CA53414A | Derailing device | |
| CA41773A | Derailing device |