| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Machines | |
| #3 | Thermal processes | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Electric switches | |
| #2 | Gearing | |
| #3 | Fluid heaters | |
| #4 | Electrically-conductive connections | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hart George H | 17 |
| Publication | Filing date | Title |
|---|---|---|
| US1408999A | Electric switch | |
| US1430645A | Electric switch | |
| US1335499A | Switch | |
| US1357287A | Electric-heater faucet | |
| US1297348A | Electric switch. | |
| US1266801A | Switch-containing plug-connector. | |
| US1222947A | Electric switch. | |
| US1234542A | Feed-through switch. | |
| US1180494A | Electric switch. | |
| US1180493A | Electric switch. | |
| US1139278A | Electric switch. | |
| US1182087A | Electric switch. | |
| CA245323A | Electric switch | |
| CA246835A | Electric switch | |
| CA340862A | Electric range control system | |
| CA246836A | Electric switch | |
| CA251631A | Switch mounting for electric ranges |