| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 18 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Engines, pumps and turbines | |
| #3 | Basic communication technologies | |
| #4 | Control | |
| #5 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Smith Frank W | 6 |
| #2 | Louis Larsen | 5 |
| #3 | Larsen Louis | 3 |
| #4 | William Deans | 2 |
| #5 | Wells Chalmers P | 2 |
| #6 | Sundh August | 1 |
| #7 | Kaufman Henry J | 1 |
| #8 | Pearson Bernhard | 1 |
| #9 | Lindquist David L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1897467A | Electric switch | |
| US1686674A | Support for electrical apparatus | |
| US1750161A | System of motor control | |
| US1592113A | Lighting system | |
| US1477270A | Fluid-circulating system | |
| US1399350A | Electromagnet | |
| US1345450A | Electromagnet | |
| US1292381A | Electric controller. | |
| US1292334A | Fluid-flow indicator. | |
| US1246687A | Remote control for electric motors. | |
| US1144388A | Motor controller and indicator. | |
| US1246628A | Remote-control electrical apparatus. | |
| US970963A | Electric switch. | |
| US1022707A | Solenoid-controller. | |
| US951852A | Electric controller. | |
| US779447A | Electric controller. | |
| US779432A | Polyphase magnet. | |
| US1022708A | Time-switch for electric circuits. |