| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Dynamo-electric machines | |
| #2 | Gearing | |
| #3 | Unspecified technologies | |
| #4 | Magnets and transformers | |
| #5 | Locomotives | |
| #6 | Electric motor controls |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rhodes Harry A | 10 |
| #2 | Summeril Frank H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1068531A | Electric motor. | |
| CA137128A | Speed mechanism | |
| CA138434A | Electrical motor | |
| US990171A | Apparatus for transmitting power. | |
| US994537A | Transmission-gearing. | |
| US981690A | Heat-dissipating means for electrical apparatus. | |
| US981881A | Electrical motor. | |
| US971148A | Differential-speed motor. | |
| US981689A | Differential-speed mechanism. | |
| US993459A | Electric motor. | |
| US1069291A | Electromagnetic motor. |