| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Transport | |
| #4 | Electrical machinery and energy | |
| #5 | Environmental technology | |
| #6 | Machine tools | |
| #7 | Engines, pumps and turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Eckert William F | 11 |
| #2 | Whitcomb William C | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2640258A | Self-sharpening safety razor | |
| US2465436A | Explosion-proof generator | |
| US2452112A | Explosion-proof starter | |
| US2444432A | Two-way roller guide | |
| US2167065A | Transmission casing for internal combustion engine locomotives | |
| US2194929A | Locomotive | |
| US2197854A | Intake and exhaust control system for mine locomotives | |
| US2138148A | Gear shift | |
| US2134109A | Gear transmission | |
| US1082740A | Mine-locomotive. | |
| CA391180A | Mine locomotive control system |