| Class | Subclass | Patent |
| 623 | 1.11 | 07918880 |
| 07918881 | ||
| 1.13 | 07918882 | |
| 1.15 | 07918883 | |
| 07918884 | ||
| 1.28 | 07918885 | |
| 6.34 | 07918886 | |
| 17.11 | 07918887 | |
| 07918888 | ||
| 17.15 | 07918889 | |
| 17.16 | 07918890 | |
| 07918891 | ||
| 19.11 | 07918892 | |
| 20.24 | 07918893 | |
| 21.14 | 07918894 | |
| 22.12 | 07918895 | |
| 22.36 | 07918896 | |
| 23.65 | 07918897 | |
| 43 | 07918898 |