| Class | Subclass | Patent |
| 14 | 77.3 | 07921495 |
| 15 | 22.2 | 07921496 |
| 98 | 07921497 | |
| 120.1 | 07921498 | |
| 167.1 | 07921499 | |
| 209.1 | 07921500 | |
| 221 | 07921501 | |
| 246 | 07921502 | |
| 250.32 | 07921503 | |
| 250.46 | 07921504 | |
| 257.2 | 07921505 | |
| 319 | 07921506 | |
| 320 | 07921507 | |
| 351 | 07921508 | |
| 358 | 07921509 | |
| 412 | 07921510 | |
| 16 | 60 | 07921511 |
| 96R | 07921512 | |
| 224 | 07921513 | |
| 266 | 07921514 | |
| 340 | 07921515 | |
| 365 | 07921516 | |
| 19 | 233 | 07921517 |
| 07921518 | ||
| 07921519 | ||
| 07921520 |