| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Canada | 5 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machines | |
| #3 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Feeding fuel to combustion device | |
| #2 | Unspecified technologies | |
| #3 | Combustion residues removal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hall Cortice H | 6 |
| #2 | Hall Cortice Hunter | 3 |
| #3 | Lloyd William | 2 |
| #4 | William Lloyd | 2 |
| #5 | Wightman Merle Jessie | 1 |
| #6 | Sponsel Charles W | 1 |
| #7 | Wightman Merle J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB399879A | Improvements in or relating to burners for solid fuels | |
| US2033706A | Underfeed stoker | |
| US1762816A | Furnace | |
| US1638396A | Fuel-stoking device | |
| US1756025A | Ash-removing device | |
| US1675548A | Burner for solid fuel | |
| US1576251A | Burner plate | |
| US1703130A | Mechanical stoker | |
| CA280955A | Burner for solid fuel | |
| CA276457A | Ash removing device | |
| CA279816A | Mechanical stoker | |
| CA281645A | Stoker mechanism | |
| CA337483A | Duplex furnace |