| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | Netherlands | 3 | |
| #3 | Switzerland | 2 | |
| #4 | United Kingdom | 1 | |
| #5 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Marine propulsion | |
| #2 | Ships |
| # | Name | Total Patents |
|---|---|---|
| #1 | Broehl Walter | 7 |
| #2 | Walter Broehl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2632736A1 | Bulk carrier ship conversion system - gives fewer compartments and has longitudinal reinforcing sheets along bottom of hull | |
| DE2417250A1 | Hatch panel closing mechanism for barge - has cranked locking lever with cam acting against arm | |
| GB1216196A | Ship's rudder |