| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | Switzerland | 1 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Electrical vehicle propulsion | |
| #2 | Railway bodies | |
| #3 | Power supply for electric vehicles | |
| #4 | Hinges for doors or windows | |
| #5 | Street cleaning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Artur Mollenkopf | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US1462239A | Window, especially for railroad, tramway, and other vehicles |