| Class | Subclass | Patent |
| 172 | 1 | 07921930 |
| 264 | 07921931 | |
| 311 | 07921932 | |
| 173 | 122 | 07921933 |
| 162.1 | 07921934 | |
| 162.2 | 07921935 | |
| 174 | 17LF | 07923630 |
| 36 | 07923631 | |
| 07923632 | ||
| 50 | 07923633 | |
| 07923634 | ||
| 58 | 07923635 | |
| 74R | 07923636 | |
| 84R | 07923637 | |
| 110R | 07923638 | |
| 07923639 | ||
| 113R | 07923640 | |
| 07923641 | ||
| 117R | 07923642 | |
| 146 | 07923643 | |
| 254 | 07923644 | |
| 255 | 07923645 | |
| 264 | 07923646 | |
| 564 | 07923647 | |
| 175 | 24 | 07921936 |
| 07921937 | ||
| 26 | 07921938 | |
| 113 | 07921939 | |
| 135 | 07921940 | |
| 296 | 07921941 | |
| 177 | 180 | 07923648 |