| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 21 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Machine tools | |
| #4 | Machines | |
| #5 | Textiles and paper | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Machines for making railways | |
| #2 | Guiding railway traffic | |
| #3 | Unspecified technologies | |
| #4 | Unspecified technologies | |
| #5 | Grinding or polishing devices | |
| #6 | Stamps | |
| #7 | Tools for connecting or disengaging | |
| #8 | Nails |
| # | Name | Total Patents |
|---|---|---|
| #1 | Alden Charles A | 21 |
| #2 | Vickery Gilbert S | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1524468A | Bolt-head lock and nut holder | |
| US1537931A | Rail joint | |
| US1211381A | Machine-tool. | |
| US1124576A | Railroad switch-stand. | |
| US1099232A | Railway-switch mechanism. | |
| US1099231A | Railroad-switch stand. | |
| US1058933A | Railroad-crossing. | |
| US1050417A | Rail-clamp. | |
| US1032576A | Railroad-frog. | |
| US1032578A | Railroad-frog. | |
| US1032577A | Railroad-frog. | |
| US1099079A | Wrench. | |
| US1050416A | Railroad-switch stand. | |
| US950789A | Dispensing and printing machine. | |
| US934784A | Guard-rail. | |
| US949253A | Guard-rail clamp. | |
| US944067A | Railroad-crossing. | |
| US925552A | Rail-joint. | |
| US969506A | Tongue-switch. | |
| US925261A | Railroad-rail. |