| Class | Subclass | Patent |
| 623 | 1.11 | 07942917 |
| 1.12 | 07942918 | |
| 1.13 | 07942919 | |
| RE042380 | ||
| 1.15 | 07942920 | |
| 07942921 | ||
| 07942922 | ||
| 1.16 | 07942923 | |
| 1.23 | 07942924 | |
| 1.39 | 07942925 | |
| 1.46 | 07942926 | |
| 2.11 | 07942927 | |
| 2.36 | 07942928 | |
| 6.62 | 07942929 | |
| 8 | 07942930 | |
| 9 | 07942931 | |
| 17.11 | 07942932 | |
| 17.16 | 07942933 | |
| 23.56 | 07942934 | |
| 25 | 07942935 |