| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 4 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Transport | |
| #3 | Engines, pumps and turbines | |
| #4 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Dynamo-electric machines | |
| #2 | Aeroplanes | |
| #3 | Magnets and transformers | |
| #4 | Internal-combustion piston engines | |
| #5 | Harvesting | |
| #6 | Electric switches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Baum Frank G | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US1900689A | Airplane | |
| US1900688A | Airplane wing | |
| US1865499A | Means for cooling electric apparatus | |
| US1802865A | Means for cooling rotating electric machines | |
| US1795466A | Internal-combustion engine | |
| US1895907A | High voltage electrical switch | |
| US1691696A | Dynamo-cooling system | |
| US1779797A | Dynamo-cooling system | |
| US1273312A | Portable loader and elevator. | |
| CA248470A | Electrical transmission system | |
| CA246150A | Insulator | |
| CA243067A | Insulator | |
| CA243068A | Insulator |