USPC Class Details

Description: 71 chemistry: fertilizers / 71 chemistry: fertilizers/(1) processes and products (11) organic material-containing (15) from animal matter

Hierarchy/Derived subclasses

71 / 1-> 11-> 15-> 16
   -> 17
   -> 18
   -> 19-> 20
   -> 21
   -> 22

uspto searches

Patent Apps in 71/15

Granted Patents in 71/15

Advanced search in patft or appft for the hierarchy would be:
(ccl/71/15 or ccl/71/16 or ccl/71/17 or ccl/71/18 or ccl/71/19 or ccl/71/20 or ccl/71/21 or ccl/71/22)

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.