Hierarchy/Derived subclasses
| 137 / 67 | -> 68.11 | -> 68.12 | |||
| -> 68.13 | |||||
| -> 68.14 | -> 68.15 | ||||
| -> 68.16 | -> 68.17 | ||||
| -> 68.18 | |||||
| -> 68.19 | -> 68.21 | ||||
| -> 68.22 | |||||
| -> 68.23 | -> 68.24 | ||||
| -> 68.25 | -> 68.26 | ||||
| -> 68.27 | |||||
| -> 68.28 | |||||
| -> 68.29 | -> 68.3 | ||||
| -> 69 | |||||
| -> 70 | |||||
| -> 71 | |||||
| -> 72 | -> 73 | ||||
| -> 74 | |||||
| -> 75 | -> 76 | ||||
| -> 77 |
uspto searches
Patent Apps in 137/67Granted Patents in 137/67
Use the links above or do an advanced search in ppubs for:
(137/67.ccls. or 137/68.11.ccls. or 137/68.12.ccls. or 137/68.13.ccls. or 137/68.14.ccls. or 137/68.15.ccls. or 137/68.16.ccls. or 137/68.17.ccls. or 137/68.18.ccls. or 137/68.19.ccls. or 137/68.21.ccls. or 137/68.22.ccls. or 137/68.23.ccls. or 137/68.24.ccls. or 137/68.25.ccls. or 137/68.26.ccls. or 137/68.27.ccls. or 137/68.28.ccls. or 137/68.29.ccls. or 137/68.3.ccls. or 137/69.ccls. or 137/70.ccls. or 137/71.ccls. or 137/72.ccls. or 137/73.ccls. or 137/74.ccls. or 137/75.ccls. or 137/76.ccls. or 137/77.ccls.)
This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.