| Class | Subclass | Patent |
| 51 | 298 | 07922783 |
| 52 | 1 | 07921604 |
| 26 | 07921605 | |
| 57 | 07921606 | |
| 60 | 07921607 | |
| 67 | 07921608 | |
| 79.9 | 07921609 | |
| 90.1 | 07921610 | |
| 111 | 07921611 | |
| 126.6 | 07921612 | |
| 169.1 | 07921613 | |
| 204.71 | 07921614 | |
| 238.1 | 07921615 | |
| 295 | 07921616 | |
| 356 | 07921617 | |
| 582.2 | 07921618 | |
| 742.1 | 07921619 | |
| 745.16 | 07921620 | |
| 847 | 07921621 | |
| 53 | 54 | 07921622 |
| 116 | 07921623 | |
| 399 | 07921624 | |
| 434 | 07921625 | |
| 55 | 440 | 07922784 |
| 56 | 10.2R | 07921626 |
| 181 | 07921627 | |
| 327.1 | 07921628 | |
| 57 | 6 | 07921629 |
| 07921630 |