| Class | Subclass | Patent |
| PLT | 180 | PP021792 |
| 226 | PP021793 | |
| PP021794 | ||
| PP021795 | ||
| 250 | PP021796 | |
| 251 | PP021797 | |
| 257 | PP021798 | |
| 263.1 | PP021799 | |
| PP021800 | ||
| PP021801 | ||
| 287 | PP021802 | |
| 288 | PP021803 | |
| 290 | PP021804 | |
| 297 | PP021805 | |
| 309 | PP021806 | |
| 332 | PP021807 | |
| 346 | PP021808 | |
| 413 | PP021809 | |
| PP021810 | ||
| 428 | PP021811 | |
| 433 | PP021812 | |
| 451 | PP021813 | |
| 487 | PP021814 | |
| PP021815 |