Hierarchy/Derived subclasses
| 427 / 2.1 | -> 2.11 | -> 2.12 | |
| -> 2.13 | |||
| -> 2.14 | -> 2.15 | -> 2.16 | |
| -> 2.17 | |||
| -> 2.18 | -> 2.19 | ||
| -> 2.2 | |||
| -> 2.21 | |||
| -> 2.22 | |||
| -> 2.23 | |||
| -> 2.24 | -> 2.25 | ||
| -> 2.26 | -> 2.27 | ||
| -> 2.28 | |||
| -> 2.29 | |||
| -> 2.3 | |||
| -> 2.31 |
uspto searches
Patent Apps in 427/2.1Granted Patents in 427/2.1
Use the links above or do an advanced search in ppubs for:
(427/2.1.ccls. or 427/2.11.ccls. or 427/2.12.ccls. or 427/2.13.ccls. or 427/2.14.ccls. or 427/2.15.ccls. or 427/2.16.ccls. or 427/2.17.ccls. or 427/2.18.ccls. or 427/2.19.ccls. or 427/2.2.ccls. or 427/2.21.ccls. or 427/2.22.ccls. or 427/2.23.ccls. or 427/2.24.ccls. or 427/2.25.ccls. or 427/2.26.ccls. or 427/2.27.ccls. or 427/2.28.ccls. or 427/2.29.ccls. or 427/2.3.ccls. or 427/2.31.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.