| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 15 | |
| #2 | United States | 6 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Transport | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Elevators and escalators | |
| #2 | Railway bodies | |
| #3 | Transport or storage devices | |
| #4 | Gearing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Patmore Deforest Charles | 6 |
| #2 | Leonard Daniel C | 3 |
| #3 | Wesley Lancaster Arthur | 3 |
| #4 | Wolfe William G | 2 |
| #5 | Brodribb Francis Bower | 2 |
| #6 | Lancaster Arthur Wesley | 2 |
| #7 | Jackson Archibald | 1 |
| #8 | Patmore De Forest C | 1 |
| #9 | Patmore Deforest C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2889947A | Bottom dump skip | |
| US2790569A | Mine dump skip | |
| US2469665A | Radial adjusting sprocket | |
| US2561060A | Safety device for mine cages and the like | |
| US2443317A | Door operating device | |
| US2482347A | Dumping car | |
| CA386491A | Railway car dumping mechanism | |
| CA380673A | Dumping car tipple | |
| CA397176A | Endless conveyer | |
| CA457259A | Radial adjusting sprocket | |
| CA336991A | Reversing clutch | |
| CA512810A | Automatic machine for pushing paper rolls from a conveyor | |
| CA442474A | Dumping car | |
| CA388236A | Mine skip bucket | |
| CA685144A | Bottom dump skip | |
| CA541925A | Mine skip | |
| CA388683A | Mine car latch | |
| CA335617A | Troughing idler | |
| CA489639A | Safety devices for mine cages and the like | |
| CA532765A | Mine dump skip |