USPC Class Details

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

Hierarchy/Derived subclasses

71 / 1-> 11-> 12-> 13
  -> 14
  -> 15-> 16
   -> 17
   -> 18
   -> 19-> 20
   -> 21
   -> 22
  -> 23-> 24
  -> 25-> 26
  -> 27-> 28-> 29
    -> 30

uspto searches

Patent Apps in 71/11

Granted Patents in 71/11

Advanced search in patft or appft for the hierarchy would be:
(ccl/71/11 or ccl/71/12 or ccl/71/13 or ccl/71/14 or 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 or ccl/71/23 or ccl/71/24 or ccl/71/25 or ccl/71/26 or ccl/71/27 or ccl/71/28 or ccl/71/29 or ccl/71/30)

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.
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