| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 17 | |
| #2 | United States | 3 | |
| #3 | United Kingdom | 2 | |
| #4 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Transport | |
| #3 | Engines, pumps and turbines | |
| #4 | Optics | |
| #5 | Control | |
| #6 | Machine tools | |
| #7 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Lubricating | |
| #2 | Wheelchairs and sledges | |
| #3 | Pumps | |
| #4 | Cameras | |
| #5 | Percussive tools | |
| #6 | Clutches and brakes | |
| #7 | Unspecified technologies | |
| #8 | Systems controlling non-electric variables | |
| #9 | Vehicle tyre repairing | |
| #10 | Venting or aerating devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Woerner Eugen | 8 |
| #2 | Eugen Woerner | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB499002A | An improved chainless cycle with pedal levers | |
| US2168110A | Chainless cycle with pedal levers | |
| US1891586A | Pressure-operated valve | |
| US1603228A | Oil-pressure pump | |
| GB220827A | Oil pump with pistons arranged in a circle and with common driving disk |