| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 15 | |
| #2 | United Kingdom | 6 | |
| #3 | United States | 3 | |
| #4 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Aeroplanes | |
| #2 | Parachutes | |
| #3 | Vehicle wheels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Albert Rupp | 4 |
| #2 | Rupp Albert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB508760A | Improvements relating to screw propellers | |
| US2353190A | Screw propeller | |
| US2236201A | Screw propeller | |
| GB506246A | Improvements in or relating to screw propellers | |
| GB463539A | Improvements in variable-pitch propellers | |
| GB443740A | Means for fastening propellers | |
| US1969664A | Propeller hub | |
| GB388174A | Improvements in hubs for air screws | |
| GB245187A | Means for securing propellers or wheels on their shafts |