| Class | Subclass | Patent |
| 141 | 49 | 07921883 |
| 86 | 07921884 | |
| 165 | 07921885 | |
| 302 | 07921886 | |
| 144 | 136.1 | 07921887 |
| 253.1 | 07921888 | |
| 391 | 07921889 | |
| 148 | 122 | 07922832 |
| 203 | 07922833 | |
| 307 | 07922834 | |
| 320 | 07922835 | |
| 326 | 07922836 | |
| 332 | 07922837 | |
| 07922838 | ||
| 542 | 07922839 | |
| 609 | 07922840 | |
| 692 | 07922841 |