| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | EPO (European Patent Office) | 4 | |
| #3 | Brazil | 1 | |
| #4 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Vehicle wheels | |
| #2 | Unspecified technologies | |
| #3 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Chou Chuan-Hai | 10 |
| #2 | Zhou Chuan-Hai | 1 |
| #3 | Chow Chuan Hai | 1 |
| Publication | Filing date | Title |
|---|---|---|
| TW201130670A | Method for manufacturing protection frame of caster | |
| EP2301765A1 | Castor | |
| EP2060409A1 | Truckle assembly | |
| US2009119878A1 | Truckle assembly | |
| US2008092329A1 | Wheel assembly | |
| EP1914090A1 | Wheel assembly | |
| EP1886840A1 | Wheel assembly | |
| US2008005868A1 | Wheel assembly | |
| US2006288524A1 | Base member for swivel caster | |
| US2006236501A1 | Wheel assembly | |
| US5675864A | Caster with brake for use in a mobile structure |