| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | United States | 4 | |
| #3 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Machines for making railways | |
| #2 | Soldering, welding and flame cutting | |
| #3 | Unspecified technologies | |
| #4 | Sawing |
| # | Name | Total Patents |
|---|---|---|
| #1 | John Wattmann | 4 |
| Publication | Filing date | Title |
|---|---|---|
| US1771472A | Method of alumino-thermic welding | |
| US1732390A | Welding collar for rail joints | |
| US1729464A | Method of welding exposed rails | |
| US1704269A | Method of transporting rails of relatively great length | |
| GB212339A | Improvements in or relating to the welding of rails and other articles | |
| GB200910A | Improvements relating to welding |