| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 12 | |
| #2 | Germany | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Machines for making railways | |
| #2 | Dredging | |
| #3 | Railway bodies | |
| #4 | Installation of electric cables | |
| #5 | Power supply for electric vehicles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zürcher Ralf | 13 |
| #2 | Vonhoff Axel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE102012025605A1 | Device for opening and / or closing a lid of a U-shaped cable duct | |
| EP2374931A2 | Refurbishment method for multi-layer substructure of rail sections | |
| EP2159323A1 | Device for reconditioning track sections for train transport | |
| DE102009007222A1 | Track vehicle for excavating a trench parallel to a track on railway lines |