| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Australia | 1 | |
| #5 | Canada | 1 | |
| #6 | Republic of Korea | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Transport | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Cycles | |
| #2 | Unspecified technologies | |
| #3 | Shafts | |
| #4 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Weidner Frank | 12 |
| Publication | Filing date | Title |
|---|---|---|
| DE102005022808A1 | Safety device for steering head bearings and method for securing steering head bearings | |
| DE10330419A1 | Steering head bearing for two-wheeled vehicles | |
| AU1373400A | Free wheel |