| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Materials and metallurgy | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Casings for combustion chambers | |
| #2 | Rail vehicle suspensions | |
| #3 | Foundry moulding | |
| #4 | Grates | |
| #5 | Feeding fuel to combustion device |
| # | Name | Total Patents |
|---|---|---|
| #1 | Duncan William Millen | 14 |
| Publication | Filing date | Title |
|---|---|---|
| CA174873A | Furnace | |
| US1145573A | Furnace. | |
| US1074317A | Car-truck construction. | |
| US1027326A | Ignition-arch for furnaces. | |
| US1006369A | Car or truck. | |
| US1006368A | Ignition-arch for furnaces. | |
| US1006449A | Sand-molding apparatus. | |
| US958379A | Ignition-arch for furnaces. | |
| US951499A | Gate for mechanical stokers. | |
| US821791A | Molding-machine. | |
| CA205630A | Chain grate | |
| CA249207A | Mechanical stoker | |
| CA258906A | Furnace | |
| CA205631A | Furnace |