| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 13 | |
| #2 | United Kingdom | 1 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Macromolecular chemistry and polymers | |
| #3 | Machine tools | |
| #4 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Machines for making railways | |
| #2 | Couplings | |
| #3 | Treating wood | |
| #4 | Dredging | |
| #5 | Macromolecular compounds compositions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rudert Franz | 4 |
| #2 | Schultze Dr Willy | 1 |
| #3 | Franz Rudert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1657903A | Fastening device for rails | |
| GB272816A | Improved means for securing railway rails to sleepers |