| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Civil engineering | |
| #3 | Machines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Railway bodies | |
| #2 | Machines for making railways | |
| #3 | Unspecified technologies | |
| #4 | Nails | |
| #5 | Railway brakes | |
| #6 | Unspecified technologies | |
| #7 | Load transportation vehicles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wortman George C | 11 |
| Publication | Filing date | Title |
|---|---|---|
| US1592965A | Nut lock | |
| US1545721A | Railroad-track construction | |
| US1344109A | Rail-bracing-spike retainer | |
| US1333235A | Holder for railway-rail spikes | |
| US1274833A | Dumping push-car. | |
| US908635A | Push-car. | |
| US908435A | Dumping push-car. | |
| US911191A | Push-car. | |
| US905121A | Push-car. | |
| US870707A | Brake-operating mechanism. | |
| US910626A | Dumping and loading car. |