| Subclass | Subgroup | Patent |
| C01B | 3/047 | 11084719 |
| 3/38 | 11084720 | |
| 3/48 | 11084721 | |
| 13/0203 | 11084722 | |
| 21/086 | 11084723 | |
| 32/168 | 11084724 | |
| 11084725 | ||
| 32/194 | 11084726 | |
| 33/14 | 11084727 | |
| 33/1585 | 11084728 | |
| 33/193 | 11084729 | |
| C01C | 1/0447 | 11084730 |
| 1/0488 | 11084731 | |
| C01G | 9/03 | 11084732 |
| 23/04 | 11084733 | |
| 25/006 | 11084734 |