| Subclass | Subgroup | Patent |
| C02F | 1/281 | 12391578 |
| 12391579 | ||
| 12391580 | ||
| 1/325 | 12391581 | |
| 1/4608 | 12391582 | |
| 1/46109 | 12391583 | |
| 12391584 | ||
| 1/4674 | 12391585 | |
| 1/5245 | 12391586 | |
| 1/68 | 12391587 | |
| 1/72 | 12391588 | |
| 1/727 | 12391589 | |
| 1/74 | 12391590 | |
| 5/08 | 12391591 | |
| 9/00 | 12391592 | |
| 12391593 | ||
| 11/10 | 12391594 |