| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Basic materials chemistry | |
| #5 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Railway bodies | |
| #2 | Unspecified technologies | |
| #3 | Venting or aerating devices | |
| #4 | Rail vehicle suspensions | |
| #5 | Heat-exchanger without contact | |
| #6 | Compressed gas holders | |
| #7 | Working-up pitch |
| # | Name | Total Patents |
|---|---|---|
| #1 | Smith Abram E | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US1587245A | Outlet valve for tank cars | |
| US1527017A | Tank car | |
| US1432497A | Tank car | |
| US1245281A | Railroad tank-car. | |
| US1100405A | Tank-car. | |
| US1093737A | Tank-car. | |
| US1118514A | Heater for tanks. | |
| US1136375A | Discharge appliance for railroad tank-cars. | |
| US956740A | Car structure. | |
| US1073178A | Railway-car-truck bolster. |