| Subclass | Subgroup | Patent |
| C25B | 1/04 | 10975476 |
| 10975477 | ||
| 1/16 | 10975478 | |
| 9/063 | 10975479 | |
| 9/40 | 10975480 | |
| 11/075 | 10975481 | |
| 11/091 | 10975482 | |
| 13/08 | 10975483 | |
| C25C | 3/18 | 10975484 |
| C25D | 1/003 | 10975485 |
| 1/02 | 10975486 | |
| 1/04 | 10975487 | |
| 5/50 | 10975488 | |
| 17/001 | 10975489 | |
| C25F | 3/12 | 10975490 |
| 3/16 | 10975491 |