| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 8 | |
| #2 | United States | 8 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machines | |
| #3 | Control |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Fluid heaters | |
| #3 | Controlling combustion | |
| #4 | Steam generation | |
| #5 | Ignition and extinguishing | |
| #6 | Systems controlling non-electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schwartz Gerhardt F | 16 |
| Publication | Filing date | Title |
|---|---|---|
| US1780316A | Hot-water tank | |
| US1624983A | Method of making hot-water tanks | |
| US1706416A | Water tank and radiant fire arrangement | |
| US1500772A | Automatic cut-off for gas appliances | |
| US1676671A | Electric control device | |
| US1454341A | Safety control for automatic gas appliances | |
| CA191431A | Thermostatic valve | |
| CA182702A | Thermostatic valve | |
| US1210706A | Thermostatic valve. | |
| US1295610A | Tank water-heater. | |
| CA254963A | Cut-off for gas apparatus | |
| CA249034A | Safety control for automatic gas appliances | |
| CA251914A | Hot water tank | |
| CA195814A | Water heater | |
| CA285303A | Gas burner valve | |
| CA198288A | Tank water heater |