| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Machines | |
| #3 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Systems controlling non-electric variables | |
| #2 | Unspecified technologies | |
| #3 | Controlling combustion | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Grayson John H | 8 |
| #2 | Vaughn Sidney P | 4 |
| #3 | Grayson John Harry | 1 |
| #4 | Kennedy Martin M | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2130796A | Gas valve | |
| US2153886A | Oven heat control | |
| US1950727A | Thermostatic valve structure | |
| US1844126A | Thermostatically controlled gas valve | |
| US1957774A | Oven regulator | |
| US1901881A | Thermostat | |
| US1919265A | Thermostat | |
| US1874661A | Thermostat | |
| US1862183A | Oven regulator | |
| US1874660A | Thermostatic snap valve | |
| US1813048A | Safety burner | |
| US1851277A | Thermostat | |
| US1744465A | Thermostat | |
| CA292566A | Thermostat |