| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Control | |
| #3 | Machines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Systems controlling non-electric variables | |
| #2 | Fluid heaters | |
| #3 | Unspecified technologies | |
| #4 | Ignition and extinguishing | |
| #5 | Venting or aerating devices | |
| #6 | Burners |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hamilton Paul H | 11 |
| #2 | Thomas Miley W | 1 |
| #3 | Raffel Ferdinand A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2013713A | Safety valve device | |
| US2033336A | Fuel control valve | |
| US1933056A | Heater | |
| US1737755A | Thermostatic valve | |
| US1726954A | Thermostat mechanism | |
| US1852157A | Heater | |
| US1730423A | Heater | |
| US1694777A | Valve | |
| US1678658A | Control mechanism | |
| US1553233A | Baffle | |
| US1337620A | Hydrocarbon-lamp | |
| CA292026A | Valve |