USPC Class Details

Description: D8 tools and hardware / d8 tools and hardware/(14) other tools and implements (90) abrading (91) sharpener

Hierarchy/Derived subclasses

D8 / 14-> 90-> 91-> 92
   -> 93

uspto searches

Patent Apps in D8/91

Granted Patents in D8/91

Advanced search in patft or appft for the hierarchy would be:
(ccl/D8/91 or ccl/D8/92 or ccl/D8/93)

Press the Search button below to send the query to the USPTO site. (Granted patents search)

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.