| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 3 | |
| #2 | Switzerland | 3 | |
| #3 | United States | 3 | |
| #4 | Spain | 2 | |
| #5 | Denmark | 1 | |
| #6 | France | 1 | |
| #7 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Machines for making railways |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dorpmueller Heinrich | 11 |
| #2 | Paulus Heinrich | 5 |
| #3 | Heinrich Paulus | 1 |
| #4 | Heinrich Dorpmueller | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US923417A | Device for preventing the creeping of rails. | |
| US791139A | Device for preventing the creeping of rails. | |
| GB190218428A | Improvements in or relating to a Device for Preventing the Creeping of Rails. | |
| US716207A | Device for preventing the creeping of rails. |