Hierarchy/Derived subclasses
| 213 / 75r | -> 77 | -> 78 | -> 79 | -> 80 | -> 81 |
| -> 82 | -> 83 | ||||
| -> 84 | |||||
| -> 85 | |||||
| -> 86 | -> 87 | ||||
| -> 88 | -> 89 | -> 90 | |||
| -> 91 | -> 92 | ||||
| -> 93 | -> 94 | ||||
| -> 95 | |||||
| -> 96 | -> 97 | ||||
| -> 98 | -> 99 |
uspto searches
Patent Apps in 213/78Granted Patents in 213/78
Use the links above or do an advanced search in ppubs for:
(213/78.ccls. or 213/79.ccls. or 213/80.ccls. or 213/81.ccls. or 213/82.ccls. or 213/83.ccls. or 213/84.ccls. or 213/85.ccls. or 213/86.ccls. or 213/87.ccls. or 213/88.ccls. or 213/89.ccls. or 213/90.ccls. or 213/91.ccls. or 213/92.ccls. or 213/93.ccls. or 213/94.ccls. or 213/95.ccls. or 213/96.ccls. or 213/97.ccls. or 213/98.ccls. or 213/99.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.