| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 35 | |
| #2 | Canada | 6 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Engines, pumps and turbines | |
| #3 | Thermal processes | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Rail vehicle suspensions | |
| #2 | Couplings | |
| #3 | Steam generation | |
| #4 | Railway bodies | |
| #5 | Railway brakes | |
| #6 | Cyclically operating valves | |
| #7 | Unspecified technologies | |
| #8 | Vehicle wheels | |
| #9 | Machines | |
| #10 | Vehicle brake control systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pilcher John A | 41 |
| #2 | Lemen Ward W | 3 |
| #3 | Wine William E | 1 |
| #4 | Coddington Harry W | 1 |
| #5 | Doarnberger John A | 1 |
| #6 | Lewis William H | 1 |
| #7 | Kadel Byers W | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1940697A | Locomotive boiler structure | |
| US1940696A | Locomotive boiler structure | |
| US1816912A | Support for locomotive air pumps, etc. | |
| US1856400A | Railway car | |
| US1737385A | Steam boiler | |
| US1681783A | Draft connection | |
| US1681784A | Coupler yoke | |
| US1681782A | Coupler attachment | |
| US1556024A | Car truck | |
| US1437441A | Car construction | |
| US1434145A | Car-door arrangement | |
| US1575277A | Railway-car truck | |
| US1503847A | Six-wheel car truck | |
| US1433096A | Railway car | |
| US1681781A | Coupler attachment | |
| US1472135A | Car construction | |
| US1406076A | Railway car and truck construction | |
| US1263464A | Railway draft-rigging. | |
| US1265374A | System of equalization for car-trucks. | |
| US1241441A | Brake-lever for car-trucks. |